Geronimo tries to enjoy his seaside vacation even though his hotel is dilapidated.

The narrator lives in a little blue house beside the sea, observing the natural world around her.

I went for a walk at the seashore today. I saw lots of pretty little seashells! 1 diving gray dolphin, 2 striped beach umbrellas, 3 leaping fishes and so much more. What a good walk I had! - back cover

"A brother and sister enjoy a brilliant day full of spills, thrills, and silly adventures in this story comprised only of words that contain a double L"-- Provided by publisher.

When Gideon decides that he is going to build the most spectacular sandcastle anyone has ever seen without the help of his little sister Audrey, his day at the beach becomes a lesson in sibling bonding.

Whistler and Lila, two of the mice children who live in a lighthouse, meet a young octopus when they visit the beach during low tide.

"Camille loves the ocean, the warm sand, the pretty shells, and the sparkling waves that tickle her toes. Sometimes she even imagines that she's a mermaid with whales and dolphins for friends! When the other WellieWishers see how much Camille misses her summers by the sea, they want to help, but how can four girls turn a garden into an ocean?"--Publisher.

A family of animals that lives in a lighthouse helps an otter, whose sister is trapped in an old fishing net.

"When a baby sea lion's mother leaves him at the lighthouse, the lighthouse family enjoys caring for him until she returns"-- Provided by publisher.

Spending the summer after seventh grade at his great-uncle's oceanside museum, Thatcher and local girl Trudy team up to help Shoal, one of the people of Atlantis cursed by a witch whose head still survives, and who has an army of monstrous creatures helping her.