I just wanted to encourage anyone thinking about getting their teenagers certified for SCUBA diving. My youngest son, has been diving since he was 12 (now 15 and a half). He is one of the safest, most comfortable divers I have been in the water with (and I taught for 3 years in Northern CA). I am taking him with me on a live-aboard to Saba, St. Lucia, this fall. I can hardly wait.