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The Mariana Trench Adventure
Special episode of the animated deep sea adventure series. Tweak has designed a brand-new Deep Sea Station to study the deepest, darkest reaches of the ocean.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 3 - Water Bears
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts venture into a dangerous red-hot lava tube to rescue a teeny tiny water bear.
20-11-2018
CBeebies
Octonauts
Series 3 - Siphonophore
Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore.
19-11-2018
CBeebies
Octonauts
Series 2 - Gulper Eels
Animated deep sea adventures with Captain Barnacles and his explorers. Hungry gulper eels as well as undersea tremors threaten Inkling and Kwazii.
16-11-2018
CBeebies
Octonauts
Series 2 - Humphead Parrotfish
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts use magnets to try to stop a meteor that's heading toward the Octopod.
15-11-2018
CBeebies
Octonauts
Series 2 - Saltwater Crocodile
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts must figure out how to get a gigantic saltwater crocodile back home.
14-11-2018
CBeebies
Octonauts
Series 2 - Manatees
Animated deep sea adventures with Captain Barnacles and his explorers. Running out of air, Barnacles struggles to free his paw from the mouth of a giant clam.
13-11-2018
CBeebies
Octonauts
Series 2 - Leafy Sea Dragons
Animated deep-sea adventures with Captain Barnacles and his explorers. Two young leafy sea dragons are accidentally brought onboard the Octopod.
12-11-2018
CBeebies
Most popular episodes of Octonauts
Octonauts
Series 3 - Artificial Reef
Animated deep sea adventures with Captain Barnacles and his explorers. Tweak and her crewmates must convert the Gup-F into an artificial reef.
23-09-2018
CBeebies
Octonauts
Series 1 - The Monster Map
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts follow an old map to what Kwazii believes is treasure guarded by a sea monster.
04-10-2018
CBeebies
Octonauts
Creature Reports - The Octopus
Captain Barnacles and his intrepid band of explorers sing about underwater creatures. The Octonauts share a few fun facts about the octopus.
26-06-2014
CBeebies
Octonauts
Series 3 - Barracudas
Animated deep-sea adventures with Captain Barnacles and his explorers. Shellington and the Vegimals are on a mission to replant a mangrove forest.
03-08-2018
CBeebies
Octonauts
Series 1 - The Snot Sea Cucumber
Animated deep-sea adventures with Captain Barnacles and his explorers. A slimy, slippery snot sea cucumber gets loose onboard the Octopod.
15-04-2018
CBeebies
Octonauts
Series 1 - The Marine Iguanas
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts prepare for their annual seaweed feast near the Galapagos Islands.
09-05-2018
CBeebies
Octonauts
Series 3 - Cone Snails
Animated deep sea adventures with Captain Barnacles and his explorers. Only Peso can save the day when a cone snail invades the Octopod.
22-09-2018
CBeebies