SCUBA diving is sensual. To breathe underwater is one of the most fascinating and peculiar sensations imaginable. Breathing becomes a rhythmic melody of inhalations and exhalations. The cracks and pops of fish and crustaceans harmonize with the rhythmic chiming of the bubbles as you exhale. Soon, lungs act as bellows, controlling your buoyancy as you achieve weightlessness. And, as in your dreams, you are flying. Combine these otherworldly stimuli and you surrender completely to the sanctuary of the underwater world.