Snorks(1984)

Deep down in the Pacific Ocean in the subterranean city of Bikini Bottom lives a square yellow sponge named SpongeBob SquarePants. SpongeBob lives in a pineapple with his pet snail, Gary, loves his job as a fry cook at the Krusty Krab, and has a knack for getting into all kinds of trouble without really trying. When he's not getting on the nerves of his cranky next door neighbor Squidward, SpongeBob can usually be found smack in the middle of all sorts of strange situations with his best buddy, the simple yet lovable starfish, Patrick, or his thrill-seeking surfer-girl squirrel pal, Sandy Cheeks.

Commanded by Captain Michael Murphy, Sealab is dedicated to the exploration of the seas and the protection of marine life. Among other things, the crew of Sealab faced such challenges as attacks from sharks and giant squids, potential environmental disasters, and threats to Sealab and marine life from shipping.

Disney's The Little Mermaid is an American animated television series produced by Walt Disney Television Animation based on the 1989 Disney film of the same name. It features the adventures of Ariel as a mermaid prior to the events of the film. This series is the first Disney television series to be spun off from a major animated film. Some of the voice actors of the film reprise their roles in the series, among them Jodi Benson as Ariel, Samuel E. Wright as Sebastian, Kenneth Mars as King Triton, and Pat Carroll as Ursula.

The adventures of a young shell named Shelldon who, together with his best friends Herman and Connie, boldly navigate their way through the underwater world of Shell Land, one lesson at a time.

The adventures of seven fish-tailed kids- Molly, Gil, Oona, Deema, Nonny, Goby, and Zooli!

5000 years ago, the Triton Family was living peacefully in Atlantis until the Poseidon Family destroyed them all. Triton, of the Triton Family line, embarks on an adventurous life in the sea fighting the Poseidon Family.

The Undersea Adventures of Captain Nemo was a series of five-minute cartoons produced in Canada in the mid-1970s. They told the story of Captain Mark Nemo and his young assistants, Christine and Robbie, in their nuclear-powered submarine, the Nautilus.

SpongeBob and friends spend the summer catching jellyfish, building camp-fires, and swimming in Lake Yuckymuck at Camp Coral, located in the Kelp Forest.

The adventures of the Nekton family, a family of daring underwater explorers who live aboard a state-of-the-art submarine, The Aronnax, and explore uncharted areas of the earth's oceans to unravel the mysteries of the deep.

Marine Boy was one of the first color anime cartoons to be shown in a dubbed form in the U.S., and later in Australia and the United Kingdom. It was originally produced in Japan as Undersea Boy Marine by Minoru Adachi and animation company Japan Tele-Cartoons. It was sold outside of Japan via K. Fujita Associates Inc., with Warner Bros / Seven Arts Television handling worldwide distribution of the English-language version.

Fish Police is a comic book series by cartoonist Steve Moncuse. The plot centers on law and crime in a fictional underwater metropolis with the protagonist, Inspector Gill, trying to solve various, often Mafia-related, crimes while avoiding being seduced by the buxom Angel Jones. The comic featured several marine species as its characters, while the plots and dialogue were reminiscent of film noir. Original Fish Police stories were published from 1985 to 1991, and featured the early work of Sam Kieth as inker.

Join the crew of the Seaview aboard their super high-tech submarine, where no mission is too dangerous and no threat is too deadly, be it enemy agents, mad scientists, deadly sea creatures, or impending nuclear disaster.

In the early 21st century, mankind has colonized the oceans. The United Earth Oceans Organization enlists Captain Nathan Bridger and the submarine seaQuest DSV to keep the peace and explore the last frontier on Earth.

Filmed over the course of a year, this three-part documentary follows those who live in one of the most extraordinary places on the planet, Australia's Great Barrier Reef.

The six-part documentary series follows a training course for mine clearance divers – a specialized unit tasked with finding and defusing mines. Eleven men undergo a grueling training program: freediving to the point of near unconsciousness, deep dives, forced marches, weeks at sea, and helicopter jumps from a height of ten meters into the Baltic Sea. While the instructors meticulously record every mistake, the trainees struggle with cold, exhaustion, and self-doubt. The series reveals their motivations, their courage, and their determination to assume responsibility in a tense global situation.

Deep in the abyss, a motley crew boards the S.S. Thresher submarine to explore the abandoned Rán Boer station. Fighting claustrophobia, paranoia, oceanic behemoths, and hidden horrors, one thing is certain: from the deep, power rises.

William Shatner narrated this filmed documentary series focusing on the animals and wildlife that make up the undersea kingdom.