kayakdiver
Registered
I became interested in underwater nav during scores of beach dives in Ft. Lauderdale. As on land, gps is not a replacement for basic skills but is a great tool. I've been using gps while diving for about 10 years (as seen in Underwater Magazine)...check out the youtube video by searching, "underwater gps". Of course, you have to be a very, very avid diver to consider this...or perhaps a L enforcement of public safety diver. (no data cable / external antenna)