Diving with the ragged-tooth sharks of Aliwal Shoal

Ocean predators attack sardines in feeding frenzy

Mating leopard sharks, egg-laying cuttlefish & a rare seahorse

Close encounter with feeding whale sharks

Sea fans, barracuda & a giant clam in 4K

Mantis shrimp, bearded scorpionfish & beautiful corals in 4K

Sea fans, anemones and Jellyfish in 4K

Turtles chase a diver & rare fish behaviour

Shadow-stalking trumpetfish & a shark on the hunt

Rare green turtle, titan triggerfish & nudibranchs in 4K

Eel on the hunt & creepy-looking sea cucumber in 4K

Lionfish, adorable anemone shrimp & mystery fish in 4K

Celebrating World Oceans Day in 4K

Pristine reef in 4K

Eagle ray on the hunt

Corals, clear waters & cruising fish

Circling sharks, colourful nudibranchs & a cruising turtle

A "walking" frogfish, adorable pineapple fish and a mimic octopus

Playful dolphins and a zebra shark

Moray eel attacks underwater cameraman