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Look Inside!


Costa Rica Blue is the definitive guide to Costa Rica’s underwater world, meticulously researched and written with the help and support of scientists, conservationists and expert divers in the field. Packed with extraordinary images, these pages are as visually dazzling as they are practical.


Part I is dedicated to Costa Rica’s marine life: the sharks, rays, whales and dolphins, sea turtles, fish and invertebrates that inhabit these waters. Part II is full of maps, photos and practical information about scuba diving and snorkeling, with a comprehensive section on Cocos Island. Discover the island’s fascinating history through primary sources and antique newspaper articles – from pirates and whalers to scientists and treasure hunters. Then explore its terrestrial biome and its mesmerizing underwater realm.


"Costa Rica Blue is a dream come true for divers, underwater photographers, and naturalists. Genna Marie and Avi have produced a jewel that contains everything, including geography, history, natural history, and great species and biological descriptions. It also includes useful maps of the best dive spots; that is a generous contribution by Avi, who is now sharing his decades-old secrets with all of us. And the photography is spectacular, which only makes one want to return to Cocos to dive! I enthusiastically recommend this book to all divers and sea people who want to enjoy the best kept secrets of Costa Rica. Actually, the book could be named 'The Blue Bible of Costa Rica."

– Enric Sala

Nat Geo Explorer-in-Residence

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