All language subtitles for BBC Blue Planet UK (2019) - 03 Eng

The oceans are places of wonder.

Blue Planet II showed us the beauty
and extraordinary behaviour of

marine life, whilst highlighting how
fragile and threatened our seas

have become.

Now, as Blue Planet Live
carries out a health check

on the world's oceans,
we are staying closer to home.

Our British seas are rich, varied,

and key to our island heritage,

but how are our lifestyles
affecting them?

Whoa!

We'll meet the unsung heroes
dedicated to protecting our waters

and the wildlife
that relies on them...

If we don't look after nature
nobody else will.

And celebrate the scientists
striving for solutions to

the challenges.

Whoa!

Plus, we'll meet the crabs
with a flair for style...

They're dressing up in seaweed as

a means of camouflaging themselves?
Yes.

..and delve into our very own
deep sea coral reefs.

This is the most important deep sea
coral, I think, in the whole world,

and this is just off of Scotland.

So, dip into our UK waters

and see them like you've never
seen them before.

BOTH: Welcome to Blue Planet UK.

Hi and welcome back
to Blue Planet UK.

Today we have come
to south-east England.

My home patch, Gillian,
I love it down here.

This Kent coast

is full of memories for me and here
in Herne Bay I can remember playing

just on these sandy beaches here,

building castles and generally
causing mayhem with my brothers.

This is so different from my
home patch in Cornwall.

These huge flat expanses,
the landscape is beautiful.

Just goes to show what a rich
and varied coastline Britain has.

More about Kent in a minute

but let's take a look at what's
in today's programme.

Out of sight is certainly not
out of mind as we meet the people

digging deep into
the Sidmouth fatberg.

This is the biggest one I've seen,
it's probably about here.

Chris gets a snapshot of the UK's
underwater wildlife when he meets

photographer Kirsty Andrews.

Hiding underneath those waves
are just a whole cast of the most

amazing creatures.

Got one!

There's family fun as I take my
nephews hunting for prehistoric

shark teeth.

That's a good one, isn't it?

And the Blue Planet Live team
listen closely as they go in search

of sperm whales.

Up there we've got Margate
and behind me is Whitstable,

and Herne Bay was really put
on the map when the Victorians

decided that sea bathing was going
to be their new hobby.

Steve, did you know that this
isn't the original pier?

The first one was built in 1831.
That's my fun fact for the day.

I'm sure you knew that...
Oh, it's a good fact.

It was made of wood and it
quite literally fell apart.

The second pier they decided
wasn't prestige enough for the town.

And the third pier was one
of the biggest in its day.

And that's the remnants
of it just there, over our shoulder.

There's a lot of people, in fact,
that would like to see it rebuilt.

Herne Bay and the whole Kent
coastline, in fact,

isn't just valuable
for its holiday heritage.

The cliffs and the beaches
here are also rich in marine life.

On the Kent coastline you can find
towering chalk cliffs,

glistening mudflats,

and creeks winding through
the salt marsh.

Its shallow seas are home to
everything from seals to starfish.

The coastline of Kent has changed
dramatically over the millennia.

Reculver was once a village, now
just the church is left, teetering

dangerously close to the waves.

Steve, what a stunning place
to have grown up.

I can see why you love it so much.

Of course I did! Playing up here
with my brothers and then learning

so much about the wildlife.

Just behind us here you've got the
waders and they're attracted here

because there's so much of the flat
seabed exposed as the tide goes out.

It's not just great for the birds.

You've also got seals here.

Common and grey but, of course,
the most grey seals are right

up round the coast in Norfolk.

Well, grey seals are actually,
globally, quite a rare species,

but the UK has almost half
the world's grey seal population

so it makes them a species
of special responsibility

in this country.

Now, they are marine mammals,
but they are bound to the land.

That's because they have to come
ashore once a year to breed

in the winter, and when they do
that's when they're really

vulnerable to disturbance.

But a few years ago I got to go
swimming with grey seals on

the Isles of Scilly and I got to see
them in their environment

on their terms.

What an incredible experience!

To have that moment of connection
with a wild animal is just...

It's just unforgettable.

But there's something even
more special.

When I dive I can hold my breath
for about just under a minute.

A seal's average dive
is ten minutes.

The record dive is 32 minutes

and that seal went down
to a depth of 200 metres,

which is absolutely incredible.

Ah!

To say that was amazing
is an understatement.

Now, when seals dive, or when I dive
even, the same three things happen.

The heartbeat drops,

the blood is shunted from the limbs
to the vital organs,

the heart, the lungs, the brain...

..and the lungs fill with fluid

as you start to dive deeper,

and this stops the lungs
from collapsing.

All of this is a way to maximise
the oxygen that's taken on board

at the beginning of the dive.

And what's really cool,
in my opinion,

is that it's all triggered

when the face comes into contact
with cold water.

I think
that's absolutely incredible,

and I love that we share this
with these beautiful creatures.

Gillian, they are so inquisitive,
they're coming right up to you.

It was an amazing experience,

but you've got to remember
they were wild animals

and I was swimming with them
in their environment,

so they could choose how close
they wanted to come to me.

But it's when you're on land

you've really got to give them
that respectful distance.

Do you know, there's so much to
celebrate about the UK coastline,

but for every amazing story,

there's so much
that can still be done.

Well, absolutely.

I mean, we now know how much care
we need to take about what we put

in the ocean as well as what we take
out of it, and generations of waste

can cause a real marine disaster.

Yeah, they certainly can!

I mean, have you got any idea
what a fatberg is?

If you don't, let me explain.
OK, this isn't nice.

So, it's really... In the sewers,

all the congealed fats and greases
that mix together with, maybe,

discarded wet wipes,
other sanitary products.

It's not nice, but when I heard
about one down in Devon,

I had to go and find out
what it was.

Sidmouth,

a coastal town proud of its beaches
and the quality of its sea,

rated as excellent for bathing.

But under the seafront, there's
a growing problem that you may

remember hitting
the headlines last year...

A giant fatberg as big as
a Boeing 747,

or six double-decker buses,

has been discovered blocking
a sewer in a seaside town.

Lurking beneath the town,
a 21st-century reality.

It's the biggest one I've seen.

It's probably about here.

Charlie found the fatberg

when he was inspecting the sewers
with his crew.

Andrew Roantree
from South West Water

is at the heart of the work

to remove the fatberg
before the busy tourist season

starts this summer.

What sort of monster are we talking
about? Well, this one,

when they first went down, they
estimated it was about 64 metres

long... Wow. So, it's sort of
six double-decker buses size.

Wow. So it is a big...a big lump.

To me, I find it quite surprising
that a place as rural as Sidmouth

has got such a big problem
underneath it.

Yeah, that has come as a bit
of a surprise to us.

In the south-west,
most of our sewerage system

is relatively smaller.

We don't have a lot
of big, urban environments.

This sewer where the fatberg
has been found

was a historic holding tank,

and effectively it was
a tidal release mechanism -

raw sewage discharged to sea -

based upon which direction
the tide was going. Wow.

People have poured away
hot fats down their kitchen sink,

and that becomes the glue
that sticks together

other stuff down in the sewer.

And over the last few years,

we've particularly noticed that that
other stuff tends to be wet wipes.

Wet wipes really should not
go down the toilet at all.

They just don't break down
like toilet paper does.

It's crazy to think
that we're in an area

that is really quite beautiful.

It's naturally wonderful,
and to think that just here,

there's a 64m problem,
completely man-made...

Victorians would flush their waste
straight out to sea, thinking

that the ocean was large enough
to dilute it all.

They would quite literally paddle
next to their own waste.

Historically, this practice
continued in the UK for decades.

It took until 2002 for the waste
here to be routed through a new

sewage works, cleaning the water
and killing bacteria.

Nowadays, it seems like
South West Water put in huge efforts

to preserve the quality of our seas.

But removing this fatberg
is no small scale operation.

Protective breathing apparatus
has to be worn at all times

when approaching the fatberg.

The gases are so concentrated that
any spark could cause an explosion.

Samples from the fatberg are taken
to Exeter University where John Love

and Nicky Cunningham are ready
to get, well, stuck in!

Fatbergs can potentially be
hazardous to the environment

because, for instance,

micro plastics have recently been

banned in face creams.

But it is possible that the fatberg

itself has actually accumulated
micro plastics over the years

and can release those almost like
a slow-release pollutant.

And then that would go to the sea,

that would enter the food chain,
potentially.

And so while we think that we may
have stopped the source of

pollution, actually, because there
is a reservoir there, we might not

see the effects for quite some time.

John and Nicky superheat the sample,

killing any bacteria and melting
the fat to reveal its dirty secrets.

Ah! Wow!

You can see that there is a lot
of liquid in there.

But, look, we've already got...

..some really gross panty liners.

Yuck!

So, we're going to...
We're going to leave that there.

And we'll just dig our way
through it.

That looks like a wet wipe. Yep.

What's interesting about this
is you can actually see it

solidifying on my gloves.

So even if it's liquid
when it's poured down the sink,

it really won't take very long
before it hardens

and solidifies in the sewer.

It's like the world's least
enjoyable lucky dip, isn't it?!

It's funny!

THEY LAUGH

It's by understanding the make-up
of the fatberg

that new methods to prevent them
growing in the first place

can be developed.

The water industry will say
very, very strongly that there are

products out there that people
believe they can dispose of

by flushing them away,
and actually they can't.

This is a...

We don't know what that is.
Cotton bud?

A cotton bud stick, yeah.

Whoa! Thank goodness!

Thank goodness for the screen!

The dissection all has to take place

behind a ventilated
protective barrier.

If you are wondering what
it's smelling like... Ugh!

It's not good, is it?

It's awful.

Absolutely awful.

And here are the main culprits...

Sanitary products and wet wipes.

There you go.
So those are our treasures.

All in a day's work.

With so much work going on behind
the scenes and under our feet

to conserve our coastline,
we all need to do our part.

Unfortunately, the Sidmouth fatberg
shows that it's not just what we put

in our bins that creates the plastic
problem but also what we flush

down our loos. And we need to act
responsibly, now and in the future,

because a fatberg future
is not one I relish.

It's a startling statistic to know
that three quarters of all the fat

and grease in our sewers
comes from our very own homes.

Putting it in the bin
really can make a difference.

But bad news stories can be turned
around, as Gillian found out.

My very first film for Springwatch
was on my home patch

of Cornwall in 2016.

Basking sharks...

Seal colonies...

Dolphins...

We tend to be more impressed with
the big things, the big animals.

And, of course, they're impressive,

but if you take your time

and you take the trouble

to investigate the small things,

the little things, the Lilliputian

world as I like to call it,

a whole new world opens up.

There's a tiny creature that has
recently been discovered not far

from here that tells a huge story.

What's exciting about this story
is that you don't have to travel

very far to some exotic,
far-flung place.

This tiny creature was discovered
on a very unassuming beach

in the middle of Falmouth town.

It's the sort of place that you rock
up to with your deck chairs

and your windbreak, grab a crab
sandwich and have an ice cream.

This is where a group of volunteers
made a find that I think is

really exciting.

What I'm looking for is a rock pool

where there's lots of hermit crabs.

Right, let's have a look in here.

No sign of our little fella.

OK, there we go.

That's a common hermit crab in
there. I don't know if you can see

that, its little claws poking out.

That's what I'm after,
but this isn't the right species.

Just pop them back in.

Hermit crabs are a type of crab
that make use of empty shells

that are found all over the beaches.

They're incredible animals with bags
of personality, but the particular

species of hermit crab
that I'm looking for

is really not easy to find.

Ha!
SHE LAUGHS

Found him!

That is Clibanarius erythropus,

"soldier clad in mail
with red legs",

and this one
is being really obliging.

Can you see that it's come
right out of the shell?

And you can get a really clear view
of its red legs.

And what's remarkable about this is

both its claws are the same size.

What's common among most hermit
crabs is one claw is larger,

so that's how you can be sure that
you're looking at a clibanarius.

It doesn't have a common name yet.

So, these little guys
were found in Cornwall

a long time ago.

This is actually the northern limit
of their range.

They're found in Europe as well,

but in the 1960s,
there was a massive oil spill,

the Torrey Canyon oil spill.

The clean-up effort involved the use
of lots of toxic dispersants

that cleaned up the oil,

but also wiped out
a lot of invertebrate life.

And our tiny hermit crab officially

became extinct from UK shores.

That was until it miraculously
reappeared on this very beach.

This is one of the things that
I love about the little things

in life, the fact that these animals
have arrived back on these shores

after what was, at its time,

one of the worst environmental
disasters recorded.

It's an indicator that
the marine life along these shores

may finally have recovered.

I'd love to think
that they're here to stay.

Well, that little survivor went
on to be called St Piran's crab

by a popular audience vote
on Springwatch.

St Piran being the 5th-century
Cornish abbot and saint.

Joining me today is Lauren Eyles

from
the Marine Conservation Society.

That was the biggest
man-made disaster of its time.

What are the challenges
facing our oceans today?

There are so many challenges.

I mean, plastic and litter
is kind of the obvious one,

and so many of us are aware
about it at the moment,

but it's not just plastic
and litter.

What we need to see as well
are more but also well-managed areas

that protect habitats and species,

so all the amazing things we get
here in UK oceans, and there are

some incredible things. And we need
to see those areas protected.

Why do you think plastic pollution
has caught the public's imagination?

A real light has been switched on
for so many, and particularly

after so many did watch
Blue Planet II,

we really witnessed that

in terms of mass participation
and concern for marine litter

where we saw hundreds of people turn
out on beaches across the UK.

You know, the question I often get
asked is, can these beach cleans

really make a difference?

We involve people in science.

Our work is all about
citizen science,

and it's the data that we collect
which is absolutely key

to the health
of the marine environment.

At the Marine Conservation Society,

we use that information, that data,

to really bring about change.

So, we've used it to inform
all of the plastic bag levees,

to encourage better labelling
of wet wipe products and also a ban

on microbeads in the UK.

So, it's hugely important to collect
the information which then gives us

the evidence to really change
the situation around.

So, when you go down to the beach,
of course, enjoy the wildlife, enjoy

the coastline, but help by picking
up some litter or, like Steve

did with his nephews,
look out for some ancient life.

I grew up on the on the Isle of
Sheppey, and Minster was where I

lived - this is my back garden.

This is where I spent my summer
days, up and down the coast,

in the sea, through the rock pools,

and I love being in this
environment, and coming back here

is almost reliving
childhood memories.

This coastline is part of the London
clay formation dating back

around 50 million years.

Once, it was a lush forest.

Nowadays, the cliffs hold
secrets of days gone by.

This is what we're after today,

shark's teeth,
and they vary in size.

This is quite a big one
that I found here,

and I can remember
finding this one as a kid.

It's got a lot of history to it.

I can't wait now to be taking my
nephews out,

and hopefully we'll get a few today.

Fossil hunting is a bit
of a family tradition,

and today I've got the whole
Brown clan out with me.

My nephews...

Wow! Look at this.

My two brothers...

This is just brotherly competition.

..and myself.

The sea washes fossils out of
the clay here like a giant sieve,

and they can be found by anyone
that's willing to search for them.

You never know what you're going
to get here, which makes looking

for fossils all the more exciting.

Got one!

Each and every tide
unlocks even more secrets,

ready for keen eyes to find.

Everything in this life
at the moment is all about it

being instantaneous and getting
instant gratification,

but here you've got to take
your time, you've got to be patient,

and then when you find the teeth,
it all makes it worthwhile.

They're all enjoying it,

they're all living in the moment
and not rushing.

And these are the sort of things
that being outside can do for you.

In actual fact, you found them
twice up here before.

What do you enjoy about
looking for sharks' teeth?

Finding them! Finding them...

STEVE LAUGHS

Well, I suppose
that's the whole point, isn't it?

I used to enjoy coming to the beach
with my family when I was younger,

and it's just nice to be able
to bring my family here now,

my two young boys, and I just hope
that they can enjoy it as much

as I did when I was growing up.

Fossils could be found
in many places in the UK,

from the Jurassic Coast in Dorset
to the Isle of Skye in Scotland.

But even if your beach isn't famed
for its prehistoric treasures,

there are still secret worlds
waiting to be discovered.

Rock pools provide havens
for marine life,

hiding and waiting
for the tide to turn.

And as it does,
here on Minster beach,

it's time to head home for the day.

Let's have a look.

You've found another one!

That's a good one, isn't it?

So, do you prefer playing
on your computer

or being out and looking
for sharks' teeth?

Er, looking for sharks' teeth.

Yeah, and how many
did you find today? Eight.

And how many did your dad find? One.

That's good, isn't it?
You win again.

Finding sharks' teeth, whether
you're 33 years old or 13 years old,

is fun.

You're out here and it's the
history and the imagination,

knowing that what you've got
is a fossilised tooth

that's millions of years old,
and to be down on the beach

finding your own pieces
of prehistoric history...

What kid wouldn't enjoy that?

Steve, that looked like such fun.

What a great thing to do with kids.

Yeah, I'm still grinning
from it now. They love it,

and I used to love it
when I was a kid.

And the thing is that Herne Bay
itself is a huge place for going out

and collecting
fossilised sharks' teeth.

Who would have thought
that a Kent beach

would have so many million
years' worth of history?

Well, back in the day,
this place would have had a climate

more like what Spain is today,

and it would have been
a rich habitat

for mammals, birds, insects,
and of course marine life.

So, Steve, what are your top tips
for fossil hunting here?

Well, you know, the thing is,
where we're actually standing now,

the sharks would have been
swimming over,

and so these sharks,
they're extinct now,

but take a look,
this is their teeth.

These are fossils you found here?
Yeah!

Me and my nephews and my brothers
have found these.

How cool is that?

And you can tell so much,
can't you, about the sharks?

And when you're looking for them,
the biggest tip I've got for you

is to look amongst the shingle
the same size as the teeth.

They all wash up together.
If the shingle's going to wash up,

the sharks' teeth
will wash up with it.

And that is the first thing
you've got to do.

Once you've got your eye in
and you spot one,

it's much easier to then
start finding others,

but finding your first one
is the tricky bit.

Must be so exciting, though. Yeah.

Before Chris Packham left for Mexico
for Blue Planet Live,

he went to meet
a British photographer

who wants to show that British seas

are just as exciting
as anywhere else on Earth.

I've come to meet a lawyer by day
but a diver by passion.

Kirsty Andrews is also a keen marine
photographer who fools fans

of her photographs into thinking
that she travels the world

because her subjects look so exotic.

We took some of Kirsty's photographs
out on the streets

to see whether people could guess
where they were taken.

Fish!

Fish. Fish, yes. Fish.

A Hawaiian fish?

Somewhere round there.

I'm wondering if it is more over,
like, the Caribbean way or, like,

the Galapagos or something.

Somewhere off Australia.

The Pacific or the Indian Ocean.

Tropical waters
because it's a scuba diver

and it's coral reef
and it's colourful.

Luminescent snail,

let's go for that, sounds like
a species. Sounds official!

And in the Atlantic Ocean.

I reckon it's a trick question

and they're all off the coast
of Britain, the UK.

These are all off our coast? Really?

Well, yeah, no, don't believe it.

I don't think the UK
is tropical, mate,

especially with the weather today!

Kirsty, what is it that makes
you want to immerse yourself

in this leaden froth?

It doesn't look very appealing
today, it's true,

but then it also looks
really enticing to me.

I mean, what is in there, you know,
hiding underneath those waves,

is just a whole cast of just
the most amazing creatures.

I started off just taking
a little camera in my pocket,

see what I could see, and then it's
gradually become a bit obsessional,

that I just love to, really....

I like the technical challenge
of photography,

as well as just getting that much
closer to the wildlife and capturing

that behaviour,
just to create that perfect shot,

which I haven't quite got yet.

Well, let's have a look. Yeah, sure.

I'll need my glasses.

This was taken in Scotland.

These are sponges
and anemones and corals, are they?

That's right.

And it is extraordinarily colourful.

It's like a scene from Finding Nemo,
isn't it?

Except you're short of a clownfish
and you've got a diver

giving it perspective there.

That's right!

Well, we don't have clownfish in the
UK, but we do have corkwing wrasse.

Goodness, look at that.

It really does look like it could be
on a tropical reef. It does indeed.

This is the male, often the male
is more colourful than the female.

Amazing, what a stunning animal.

So, this is a bit of
a cheeky one, really.

I was coming back from a dive and
I spotted this just bit of rubbish.

On closer look,

I saw it had a little Scottish
lobster living in it.

Looks a bit feisty! It does.

It's come out to say, you know,
well, I can't do a Scottish accent

and it's probably best that I don't,
actually,

but we can imagine what it's saying,
it's come out of its house... Yeah.

And you do see this, you see
wildlife making a home out of things

on the seabed.

That's not necessarily what you want
to see, but there's a different

message that you can use
your photography for, as well.

I do try and get
an eye-catching composition.

I like a face-on kind of shot
to really grab attention.

This is a greater pipefish. Oh, yes.

Snout pointing forwards...

I like the symmetry of that one,
I have to say.

The fish is not spectacular.

Maybe a bit more spectacular for
you. Here's another symmetry shot.

Yeah, now that I like a lot.

I mean, obviously the tentacles
aren't exactly symmetrical

but I'm being niggly.

It's a cuttlefish with its
tentacles raised, is it?

That's right, yeah.

The textures and colours
are absolutely fantastic.

And that's all the chromatophores
in the cuttlefish that it uses

to give the display.

And in this shot,
it's giving me a threat display,

it's trying to warn me off.
Is that right?

I like the photos.

I suppose, if there's a limitation,

it's the fact that none of them
are backlit, and I love shooting

into the light, you know, putting
that rim of light around things

and using it to create effects
going into the camera.

I suppose you've got here...
Yeah, OK, there's a natural one

using the sunlight there.
That's beautiful.

Well, there we are. You've finished
on a high because that's my

favourite photograph
that you've shown me.

The seal is perfectly positioned
in that white foaming water,

and you've got that remarkable

silvery molten texture above it.

That's my favourite, that and
the cuttlefish are my favourites.

But in terms of what you want...
We've always got ambitions of what

we imagine we want to do next.

What is it for you? Oh, well,
keep on improving, I suppose.

I've never had that perfect,

peaceful moment
with a basking shark.

I'd like to just be there
and have one swim up to me,

mouth open, feeding,

and be able to capture that.

Bit of backlight underneath.

Silhouetted against with all those
rays coming down through the water.

I'll think of you and I'll try
and do something like that.

Ah! I'm dreaming of it already!

Across the country, there are
many conservation success stories

that give us cause for celebration,

and one such story is of
the white-tailed eagles of Mull.

Last year, young natural history
film-maker Tom Campbell captured

this tale that he aptly named
Where Eagles Dare.

The Isle of Mull,
off the west coast of Scotland,

is a rugged and beautiful landscape.

It's home to RSPB Officer
Dave Sexton...

..and the UK's largest bird of prey.

The white-tailed sea eagle was
once the most common eagle in the UK

but was hunted to extinction
a century ago, mainly due

to its reputation
for killing livestock.

In the 1980s, the birds were
reintroduced to Scotland.

Initially, to the Isle of Rum,

before eventually settling
on neighbouring Mull.

This cemented Dave's future
on the island, too.

We were driving back along the sea
loch and we knew the sea eagles

might be around. There'd been one
or two sightings from Mull.

Suddenly, as we were driving back,
there was this massive bird flapping

hard across, quite low over
the water, over the sea loch.

And we leapt out of the vehicle
and there was a sea eagle.

And it was just an incredible
experience. And that's what

really inspired me to get
involved in this project

to bring sea eagles
back to Scotland.

I've made a nuisance of myself,
really, by pestering the guys

in species protection department,
and I was sent on a secret mission

to protect the only pair of
nesting sea eagles in Britain.

Dave is travelling deep
into the heart of Tiroran Forest

with a team from the RSPB to visit
a very special pair of eagles,

Fingal and Iona.

We know this pair really well.

The female was hatched in 1998.

She's a Scottish bird
from north-west Scotland.

The male here is actually
a Norwegian import from 1997.

So they're good mature birds now

and have been raising chicks
for many years.

What we're doing today is trying
to ring the chick of this pair.

The ringing process is really
important because it helps us

monitor the overall population.

Justin and Lewis are now going to be
measuring, getting the ring on.

It's a British Trust for Ornithology
ring on one leg

and a colour ring with big letters
on another leg,

that we'll be able to read,
hopefully, from a distance.

They begin the long and dangerous
climb to the eyrie.

They must work fast so the family
aren't disturbed for long.

SEA EAGLE CRIES

Somewhat bemused, perhaps, the
eaglet allows the work to continue

and the team get away from the nest
as soon as possible,

leaving the chick in peace.

As white-tailed sea eagles
have re-established

their territories on Mull,

the islanders have found benefits
to living alongside

this impressive predator.

Sea eagles benefit the community
because a lot of people come here

on their holidays specifically
to see the eagles, and it's widely

regarded as the best place,
certainly in the United Kingdom,

to come and view sea eagles.

All that generates trade
for the island.

Local skipper Martin Keivers
has found that people will flock

for miles to get a glimpse
of this bird's

impressive hunting display.

It seems that the sea eagles
are going from strength to strength

here on Mull,

and Dave has been part of their
story since the very beginning...

..from witnessing
the first chicks fledging

to seeing numbers steadily grow.

Here, on the wild west coast
of Scotland,

eagles are thriving once more.

Now it's time to go behind
the scenes of Blue Planet Live.

One of the species that
they're filming are sperm whales,

and you may remember they had
a massive impact on the audience

in Blue Planet II
when they had cameras put on them.

One of the challenges facing
the team this time was trying to get

a camera to record
sperm whale behaviour

at an even greater depth.

But finding a sperm whale
is a challenge all of its own.

The team are attempting to film
sperm whales who spend

much of their time under water
but surface occasionally for air.

Sperm whales spend 45 minutes
out of every hour in the darkness

of the deep ocean,

so just coming out here and looking
for them would be really tricky.

We take advantage of the fact
that they make sound the whole time

they're under water
to keep up with them.

I'm using an underwater microphone
to track the whales.

So, when they're hunting for squid,
they make echolocation like bats do

in the night-time sky.
We can hear that with this,

and this will actually tell us

which direction the clicks
are loudest,

so we can follow them
and stay with the family.

We can hear a few kilometres away.

The echolocation that
the sperm whales make is really loud

and so we can usually hear them
before we see them.

So we'll get closer
and then we'll start seeing blows

and start working today.

Blows are plumes of spray
that the whales make when breathing

at the surface.

In a calm, clear expanse of water,
they're easy to spot.

And, sure enough,
the team have seen one.

The engines are cut
and they are joined

by the underwater camera team.

Cameraman Mark Sharman prepares
his underwater equipment.

Sperm whales are incredible animals
to film.

Just their sheer size alone
is really awesome,

and just to be that close
to something that huge

is an unbelievable feeling.

There's not many things you can do
in the world that makes you feel

so small and insignificant.

Just go straight down. OK.

Camera ready, Mark enters the water
to approach the sperm whale.

The wind is starting to pick up
onshore.

We're getting a bit a chop,
and it could end up being a bit

difficult to keep an eye on him,

so it's something
that we really have to watch for.

Mark manages to get some footage,
but not what he was hoping for.

So, there were two whales
at the surface -

the calf Corkscrew
and Knife, the mother.

Corkscrew turned on her back,

and it looked like she must have
been looking up at me

as I was at the surface.
So a very unusual perspective,

to see an upside-down swimming sperm
whale about ten metres below me.

But, yeah, that's what I saw.

But as they didn't do a deep dive,
then I'm pretty sure

they're going to be surfacing
in the next five...

..15 minutes or so.

Mark re-enters the water
to get even more shots

of these magnificent creatures.

Here you go. Yeah.

How was that? It was amazing.

Yeah, finally got the shot.

You guys dropped me
in a great position.

I was able to get in front of her,
and she was cruising right,

so I had a good five metres
of her coming towards me,

which was a fantastic angle to get,

and then she came right past me.
She didn't notice me.

And then I just saw her eyes
just open like that... Wow.

..as I'm passing.
It was unbelievable.

What an encounter there for Mark!
Magic. Absolute magic.

Well, that is it from us today.

Don't forget to join
the Blue Planet Live team tonight

for more wondrous stories
from the oceans of BBC One.

Whilst they're bringing you
the stories

from the world's waters,
we'll be back same time tomorrow

for more from this great
UK coastline.

Next time on Blue Planet UK....

I love science experiments.

..I get in a spin when I find out
how washing your clothes can result

in plastic pollution.

We're finding a lot of fibres
in the marine environment.

We're finding them in the deep sea

and we're finding them
in marine creatures as well.

We learn how a national dish
has been bad for our fish.

Who would have thought that
underneath that lovely crispy batter

could be a kind of shark?

We find out about the crustaceans
making a comeback along our coast.

And Chris discusses
a fashion-conscious crab

when he meets biologist Paul Naylor.

They're dressing up in seaweed as
a means of camouflaging themselves?