This is the first guide to finding and observing Hawaiian green turtles, or honu. It describes an exciting journey of discovery undertaken by two avid sports divers, Peter Bennett and Ursula Keuper-Bennett, who encountered their first honu twenty years ago while diving off Honokand#x014D;wai, Maui. The Bennetts soon realized that many honu (and green turtles worldwide) were afflicted with debilitating and potentially deadly tumors. They began to document the disease using photographs and videotape and in the process educated themselves about the daily lives of honu. To their surprise, they discovered they were the first to make prolonged observations of a marine turtle population in its natural habitat. Drawing on their extensive experience, the Bennetts explain how to find and watch honu from shore and while snorkeling, kayaking, and especially diving. They describe the behaviors they have documented over the years and what they might mean. Their rich collection of photographs will introduce readers to honu not only as a species, but also as individual animals whose histories they have closely followed and recorded. Thanks to a highly successful conservation and research program and protection granted by the U.S. Endangered Species Act, encounters between sea turtles and humans in Hawai'i have become common. Accessibly written and extensively illustrated, The Book of Honu will alert turtle enthusiasts and others on what to expect when they come across these gentle creatures and how to observe them respectfully.