According to the National Wildlife Federation, leatherbacks are the largest turtle species, can weigh up to 2000 pounds and dive more than 1200 meters deep - almost three quarters of a mile!
Some books below may be eBooks or audiobooks. Get help with downloadable books or ask a librarian or parent for help.
Isabel of the Whales by Hester Velmans
When Isabel falls overboard while on a whale watch trip, she finds that she can change form, from human to whale. This book has been praised for its understanding of actual whale life. Also try the sequel, Jessaloup’s Song.
20,000 Leagues Under the Sea by Jules Verne, illustrated by Scott McKowen
In this classic, three people set out to investigate the existence of a sea monster, but become prisoners on an around-the-world submarine voyage. For a shorter read, try one of the adapted versions of the original.
Kid vs. Squid by Greg van Eekhout
In this comic adventure, the survivors of the lost continent Atlantis, under an ancient curse, are doomed to sell souvenirs on the boardwalk - until a young boy stumbles onto their secret and decides to save them from their awful fate.
The Tail of Emily Windsnap by Liz Kessler
When she is finally able to take swimming lessons, 12-year-old Emily discovers a terrible and wonderful secret about herself that opens up a whole new world.
The Fantastic Undersea Life of Jacques Cousteau, by Dan Yaccarino
Jacques Cousteau created new ways to explore the oceans, and to share them with others. This is available in both print and eBook.
Oceans : Surviving in the Deep Sea, by Michael Sandler
Learn about the kinds of life found in the deepest parts of the oceans, and the scientists who go there.
Octopuses, by Sandra Markle
Great photos highlight this book.
You Wouldn’t Want to Be in the First Submarine! : An Undersea Expedition You'd Rather Avoid by Ian Graham
The first submarine to engage and sink a warship was the Hunley, in the US Civil War!
At the Sea Floor Café: Odd Ocean Critter Poems by Leslie Bulion
This collection of poems about marine animals contains astonishing facts.
Meet My Grandmother : She's a Deep Sea Explorer by Lisa Tucker McElroy
Told from her grandson’s point of view, this is about Sylvia Earle, a famous marine biologist and diver.
Still curious? Explore another topic!
Ghost Liners: Exploring the World’s Greatest Lost Ships by Robert D. Ballard
The explorer who found the Titanic writes about famous shipwrecks.
Deadly Blue-Ringed Octopuses by Daisy Allyn
Learn about the blue-ringed octopus, no bigger than a golf ball, but with some of the world’s deadliest venom. When it’s upset, the rings glow!
Find lots of resources here about a favorite sea animal, dolphins!
Deep Sea Dive [DVD] from the National Geographic Society
Explore the world's oceans from surface to seafloor, and see great whales, friendly dolphins, scary sharks!
Sea People [DVD]
A teen sees an old man jump into a cold river and dives in to save him, then discovers that the man is not just what he appears to be.
Atlantis: Milo’s Return [DVD]
Undersea explorers gear up for action when trouble surfaces above water, threatening the famous and mysterious underwater kingdom of Atlantis.
The Little Mermaid [DVD]
Ariel the mermaid wishes she were human, in this animated fantasy featuring the famous song, “Under the Sea.”
Endless Ocean [Wii]
Explore coral reefs and shipwrecks, search for treasure and encounter wildlife under the sea.
Boom Blox: Bash Party [Wii]
A game played in a variety of settings, including in the depths of the sea, with changes in play to match the settings.
Sea Life from the National Oceanic and Atmospheric Administration Photo Library
Photos of amazing underwater life, arranged in groups for easy browsing, including a collection about sea stars.
Sizing Up a Squid from Smithsonian Education
How big is a giant squid? Find out here.
Short videos from National Geographic Kids:
Fish: Gulf of Mexico & Caribbean - Check out the explosion of fish life in these waters, narrated by National Geographic Explorer-in-Residence Sylvia Earle.
Clown Fish & Sea Anemones - Clever clown fish hide among the anemones for protection!
Pygmy Seahorses - Meet the world’s tiniest seahorse, just 2 centimeters long.
Invertebrates: Ocean Fairies - Some of these are almost see-through!