Nothing to really orient yourself by.

Apart from this thin line going down into the depths, we all prepared and trained.

But you just don't want anything to go wrong.

This'll Big Blue is another world is like nothing I've ever seen before.

Jellyfish and sea Selves look like they come from another planet at a depth of about 80 feet.

I feel like I'm floating in outer space.

I can't see the bottom on the chain.

Holding the boy is the only stationary object for miles around.

This is my lifeline, but very eventually has to get drawn away from his point of reference.

I wait and wait for the myth to become reality, but there's no or fish in sight.

The water is very, very clear.

Visibility I'm getting is about 30.

I don't think anything anywhere near that night, but I'm struggling to control my buoyancy in the strong swell on the effort I'm having to expend is making me tired and increasingly uncomfortable.

I'm beginning to feel disoriented.

I want to return to the surface, but I have to keep calm and take my time because a rapid change in pressure can cause potentially fatal decompression illness.

How much you read, make you read me?

Over.

We're on something of it.

Coming in?

No, totally.

Well, Jeremy.

Jeremy, you okay?

I think I'm probably about ready to come out just 60 minutes and try and get you breathing in check.

I need to find my instinct to surface immediately.

I have to ascend slowly to avoid getting the bends.

I'm relieved to be back on the boat, but physically exhausted.

Let's go.

I really struggled home at last dive.

And the thing is, I don't know if it's gonna get any better.

I'm operating.

I feel right at the edge of my capability here.

This is a very challenging underwater environment you've got no bottom to refer to.

That's a mile and 1/2 away.

Um, it is quite hard even keeping sight of work with the chain and what I'm really trying to cultivate underwater is exactly what I do when I'm fishing.

It's it's achieving a sense of calm on control, but ready to respond to the moment's notice.

But with a ll the things that I have to keep in my mind on the water.

You know, I'm just not achieving that on DDE.

I'm not sure that I can, because that's the thing on dhe.

Um, to the extent that I don't even know if I'm gonna get in the water again, I don't know if it is advisable to get in the water again.

So here we are, the conditions of great, but I don't know if I'm actually capable of it.

I face a huge dilemma.

I'm so close to potentially solving this mystery.

But I'm also concerned that getting back in the water could end badly.

I've spent my life fishing in dangerous and treacherous situations, but this is a whole different kettle of fish, one that I'm not sure I'm able to cope with.

My time is ticking away fast.

Now.

My only remaining chance of seeing this fish is to dive at night.

Think about going in at tonight is for me.

It's very much cranking things up another notch are actually several notches.

Um, it's much easier to be disoriented.

No real points of reference.

Also, your horizon is so much shorter.

And what that means is you don't get to see anything off in the distance.

I need to send my fears aside if I'm going to solve this mystery.

The water is full of plankton, which I'm hoping will summon a sea serpent up from the murky depths.

Wait again for it to appear thisted time in the eerie, silent darkness.

It's here.

Incredible, Absolutely incredible, I think A little pickle.

Yeah, I think one of these outlandish looking thing I don't even know.

Even so close.

It's hard to judge its length, but I estimate is about two and 1/2 times my height.

Very, very hard.

Four fish don't have swim bladders so they could move very rapidly up and down the water column.

Definitely using the chain.

That's a point of reference.

And follow this up.

What money?

Able.

And then suddenly it's right next to me.

But you gotta believe it came out of another dimension.

I feel so privileged to be in the presence of one of the most elusive creatures on the planet, Justus.

I think it can't get any better.

Incredible.

Wait for him while feeding my breeding.

Well, hopefully if a woman I think I would the accuracy really against a ll the odds.

I believe I've finally solve the mystery of the sea serpent.

It's this extraordinary, an exceptionally rare fish in your fish that is the true origin behind the enduring legend.