10 New Rules of Scuba Diving
Recreational diving is still a relatively young sport. Created in the 1950s, it gained acceptance in the '60s and '70s, boomed in the '80s and took great technological leaps in the '90s. So there's a good chance that not everything you learned in your open-water class still applies. New research and equipment have made diving safer and more enjoyable than ever—if you know the new rules. 1. Rever..
정보창고/Diving Info
2012. 11. 28. 05:43