I steal a last glance over the blue ocean. I hear the waves slap gently against the boat, the mournful cry of seagull, and a steady murmur from the crowded beach a mile away. With three splashes my friends jump in. I follow. There is a splash and then silence. The water presses in on me and all I can hear is the sound of my regulator as I take my first breath. All I see is blue water, yellow light, and endless space. It feel as if we are suspended in time while the world rushes on. Then my buddy taps me on the shoulder and we begin a tour of a hidden world.