 The same pleasant sea conditions that allow development of relatively delicate and highly diverse ecologies also attract the greatest number of tourists, including divers who dive infrequently, exclusively on vacation and never fully develop the skills to dive in an environmentally friendly way.Several studies have found the main reason for contact by inexperienced divers to be poor buoyancy control, and that damage to reefs by divers can be minimized by modifying the behavior of those divers.Diver impact on subtropical, and particularly temperate reefs is less researched than tropical reefs.