The updated guide is the most up-to-date resource for experiencing secure, satisfying dives. It's packed with photographs and detailed diving instructions from industry expert, Dennis Graver Scuba Diving, 5th Edition is an indispensable resource for preparation, management and enjoyment of every dive. Photographs and illustrations depict the latest equipment, gear selection, dive locations, technologies and techniques. Author and diving instructor Dennis Graver shares the latest research, science and recommendations, as well as drawing on his 39 years of diving experience.