All Episodes

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

Close encounters of the giant kind: diving with a whale shark

Do these tiny shrimp have moray eel bodyguards?

Eel and reef fish team up to form hunting pack

Diving Manta Alley

Lionfish stalks and kills prey

Under the waters of Wakatobi

Take a moment to escape into the beautiful waters of Indonesia

Barracuda vortex & lots of little Nemos

50 shades of Nudibranch

Shark sightings at the Shipwreck Graveyard

Creepy critters of the tidal lagoon

The Red Sea: A dive into paradise

Spa day for the creatures of the sea

A natural wonder: The Sardine Run

The weird world of seahorses and pipefish

Turtles all the way down

Mangroves and corals in a two-for-one dive

Harlequin shrimp feasts on live starfish

Hermit crabs, camouflaged critters and an urchin-crab duo

Things that glow in the night: The wonders of fluorescent coral

A journey to the pristine reefs of Raja Ampat

Variegated lizardfish and a colour-changing octopus

Pufferfish fights for its food on Thailand's Shark Point

Rabbitfish, sergeant majors and a suckerfish hitchhiker

Coral reefs don’t get much more amazing than this

Hawksbill turtle feeds on pristine reef

Lightning-quick worm tentacles & a well-hidden sole

Hermit crab dinnertime & cuttlefish egg drop

Pyramid reefs and coral nurseries

Wreck turns into mini-reef in just 6 months

Snake eel and deadly stonefish

Swooping manta & hungry triggerfish

10,000 nudibranch eggs & a fish with a crazy name

Flatworm, anglerfish and sharks on a secret dive site

Eerie ghost pipefish & an angry octopus squirts ink

Moray eel gets a dental checkup & we meet a fish from Finding Nemo

Mega-venomous starfish and a turtle happy meal

Spawning clams, an unusual anemone and a VERY bloated pufferfish

Square fish & a three-legged turtle

Rare pipefish, spitting blennies & an urchin hotel

Welcome to the most pristine reefs on the planet

Porcupine pufferfish & a seahorse camps out on coral

Deadly stonefish almost invisible on reef

Tiger tail seahorse and fried-egg nudi on Anemone Reef

Up close with zebra sharks and a huge octopus

Triggerfish, sweetlips, and a house-cleaning mantis shrimp

Anemones, 'hypnofish' & a basslet bonanza

Watch a seal birth up close

Rare turtle cruises over reef, snacks on a jelly

Carpet of glassfish covers reef

Weird trumpetfish & an eel heavyweight

Strange sea cuke & a turtle mesmerised by its reflection

Reef fish of the Andaman Sea put on a show

Ghost pipefish & an eel swarm

Deadly scorpionfish & a 'three-legged' turtle

City of corals

Sea cucumbers acting strange & a cuttlefish knockout

Hammerhead Shark Swarm

Spooky wreck diving in Thailand

Up close with a venomous sea snake, a spotfin lionfish and a Kuhl's ray

Diving Racha Island