Adventure-Ocean
Contributor
I had more than 12 years diving experience in the Marianas when I decided to help a young friend and teach him to dive. Big mistake. Even though we were a group of four my friend took off on his own. I spotted him at well over 250 ft. We sucked both tanks dry trying to decompress. My friend had a large embelism in his neck for a week or more. Again I tried to help teach another friend but I took him to safe 15 ft deep sand bottom area. He ended up popping an eardrum swimming circles with vertigo. Finally the lesson was learned. Do not try to instruct without the training, period.