Our underwater cameraman gets the fright of his life when a huge moving object shadows his view of the sun. Thinking his days are numbered, he quickly realises that the massive creature swimming above him is one of the ocean’s gentlest giants and the world's biggest fish: the whale shark.

Ever seen moray eels guarding shrimp? On a mission to get some close-up shots of the colourful shrimp living on a reef in South Africa’s Sodwana Bay, underwater cameraman Bart Lukasik encounters some strange and sharp-toothed obstacles: black-cheeked moray eels. Framing up for the perfect shot meant risking his fingers as the snappy eels seemed to be acting as bodyguards to these tiny crustaceans. We’ve certainly never seen anything like it! We're also treated to a visit by a curious and very friendly reef manta ray.

Watch an eel team up with three reef fish to form a formidable hunting pack and check out the bizarre-looking frogfish as it ‘hops’ through the water. Underwater cameraman Bart Lukasik is in for an awesome dive after he braves a hair-raising boat ride in South Africa’s Sodwana Bay.

It’s called Manta Alley for a reason! Explore the plankton-rich waters of this amazing Indonesian dive site and you’re guaranteed an encounter with one of the ocean’s most majestic creatures. Aside from some manta ray acrobatics, underwater cameraman Mike Veitch also spots a banded sea krait hunting for eels and a curious black-tip reef shark.

How do lionfish hunt their prey? With lightning speed and deadly accuracy.

Underwater cameraman Bart Lukasik takes advantage of the fearless nature of the charismatic lionfish to capture some beautiful footage of these creatures stalking their prey in a tidal lagoon in Mozambique. Watch as these deadly predators make two successful kills.

On the unspoilt coral reefs of Indonesia live a multitude of colourful fish species. From the adorable Clark’s anemone fish to the unusual-looking longnose butterflyfish, we are treated to a tour of this underwater paradise. Cameraman Stewart Whitfield gets a rare audience with the usually elusive freckled hawkfish.

In this week’s Wild Oceans, we are treated to a sublime journey under the waters of Wakatobi. Glimpse the rare and very camera shy blue-faced angelfish, some unusual sea fans and hundreds of different species of fish congregating around vividly coloured corals.

Wakatobi is one of Indonesia’s best dive sites and home to some of the world’s most spectacular coral reefs. Triggerfish fill the water columns, colourful clownfish hide out among anemone tentacles and huge schools of Barracuda swim in their trademark vortex. We also take a look at the unusual fishing techniques of the Bajau people.

On the pristine coral reefs of South Africa's Sodwana Bay, lives a multitude of tiny but fascinating creatures. In all their breathtaking colours, shapes and sizes, nudibranchs are a filmmaker's delight! Join us as we’re treated to an extraordinary encounter with a dancing marine flatworm and catch a pair of nudibranchs in a lover's embrace.

In the middle of the Mozambiquean Channel, a two-day sail from civilisation, lies Bassas Da India a submerged volcanic atoll and shipwreck graveyard. Utilising the quiet technology of a rebreather allows cameraman Bart Lukasik to film some up-close encounters with a curious potato bass, a green turtle, shy garden eels and even a rare sighting of the Galapagos shark.