Andy Davis

Davis teaches sidemount, advanced wreck and technical diving out of Subic Bay, and his reputation rests as much on what he has written as on what he has taught. Twelve ScubaBoard and Reddit threads cite him: named alongside Steve Martin when someone asks who teaches sidemount, called a globally renowned sidemount instructor in a recommendation thread, and repeatedly pointed to as a reference — his articles on harness configuration, wing selection and sidemount skills are the answer other divers give to other divers' questions. GUE InDepth put him in its "Who's Who of Sidemount Diving". The most detailed course report is worth reading. A commercial dive instructor who took sidemount and advanced wreck with him in 2026 describes classroom sessions that run as free-form discussion rather than structured class — and says he retained more that way — and singles out the ability to make a complex idea simple without dropping the detail that makes it understood. The pattern in the water is one long dive a day rather than several short ones: eighty minutes on the El Capitan, most of it spent running and tying off a 300-foot reel through the wreck. His advice to anyone booking: add spare days, because the pace is deliberate and the weather is not. Other reviewers are shorter and speak more to his standing than to a course — a retired saturation diver with 20,000 hours at depth vouching for the operation, a rescue diver of thirty years calling the approach to safety and structure outstanding, readers of the blog who have never dived with him.