Pacific Abyss is a three-part series on British television's (BBC1), which first aired in Sunday 17 August 2008. It is hosted by Kate Humble

Kate Humble

Katherine 'Kate' Humble is an English television presenter, mainly for the BBC, specialising in wildlife and science programmes...

, Mike Smart and Mike deGruy with filming beginning in April/May 2007.

An underwater wildlife series in which takes the viewers into a 2,000 mile adventure across the Pacific with a team of top natural history filmmakers and deep water marine biologists. A 30-strong team took part in the expedition, to search for new species in the remote and unexplored areas as well as to glory in the marine life of some of the most incredible coral reefs anywhere on Earth.

Micronesia has some of the deepest ocean trenches on the planet, with sheer walls often just a few hundred metres from the islands’ shores. These are the perfect locations for extraordinary diving, spectacular wildlife and the search for new fish species. The teams explore World War II wrecks, steep drop offs and deep caverns – all set against the ocean’s most dramatic underwater landscapes.

Using the latest in scuba technology, the divers enter the least explored region of the ocean – the 'Twilight Zone', an area between 60 and 150 metres, including ROV

Remotely operated vehicle

A remotely operated vehicle is a tethered underwater vehicle. They are common in deepwater industries such as offshore hydrocarbon extraction. An ROV may sometimes be called a remotely operated underwater vehicle to distinguish it from remote control vehicles operating on land or in the air. ROVs...

s and a Newtsuit

Newtsuit

The Newtsuit is an atmospheric diving suit designed and originally built by Phil Nuytten.The suit is used for work on ocean drilling rigs, on pipelines, salvage jobs, photographic surveys, and is standard equipment in many of the world’s navies....

, allowing for extremely deep dives, as far as 225 metres, several new species were discovered.

As the expedition team near the end of their journey across Micronesia, it's a race against time for the extreme deep divers as they continue their search for new species, exploring different islands like the Rock Islands of Palau. The "Newtsuit" is an incredible feat of submarine engineering - a bright yellow one-man submersible that Mike DeGruy has to master before he can venture even deeper into the Pacific abyss.

Team member Jo Ruxdon who described the whole series as "something new" in that people have never been able to dive to such depths in such remote places.

1. The Ghosts of Chuuk Lagoon

The team tests all the high tech recording and diving equipments before they head out to the Pacific Islands in Chuuk Lagoon. They visit the site of one of the most dramatic raids of World War II, before heading out to the open water in their ship, the Big Blue Explorer, a home away from home.

2. In Search of Giants

The team explores the reefs of Micronesia, visiting its reefs and islands. They look for many different kinds of fish, both known and unknown species. They find many different species, including the mandarin fish (pictured), a beautiful school of baracuda, and the very elusive manta rays.

3. Into The Abyss

As the Big Blue Explorer heads to their final destination at Palau Islands, they test out the very futuristic "Newtsuit", that could take divers to new depths, into the abyss.