Underwater World Scuba Center, Maineville

Underwater World Scuba Center offers scuba-diving courses that take students from the shallows of a heated indoor swimming pool at its dive shop to the depths of the ocean in faraway places such as Fiji and the Cayman Islands. Open-water certification classes cover breathing techniques and safety regulations for beginners, whereas advanced certification courses give pupils enough skills to explore the depths as a master diver or marine-life photographer. The center's trainers also provide guidance to customers who are purchasing equipment, service and repair gear, and organize scuba trips to exotic locations.