Provides information and advice on diving equipment and techniques, underwater environments, physics and physiology, rescue, first aid, decompression, and other aspects of scuba diving.
A photographic introduction to scuba diving, reviewing the history of the adventure sport, explaining how it is done, and discussing equipment, safety, and scuba-related activities.
An introduction to scuba diving that provides information on the sport's basic equipment, techniques, safety and emergency procedures, and other related topics.