Umijoo: The Wondrous Tale of a Curious Girl and Her Journey Under the Sea. 

Written by ocean conservationist Casson Trenor, illustrated by pop surrealist Caia Koopman, and crafted to resonate with all ages, Umijoo is the tale of a curious girl who, with the help of a little magic, journeys underwater to learn about the dangers facing our ocean directly from the creatures that call it home. A story of love, responsibility, and balance, Umijoo aims to educate and inspire a new generation of ocean defenders.


The Art Cave held the release party for the Umijoo book and showcased all of the original illustrations by Caia Koopman in August 2018. 

Umijoo Book


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    Santa Cruz, CA 95060

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