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Found this on a small ledge at about 30ft. It's about 6'' long and 3/4'' in Dia. It curled up a bit when I touched it and was stll alive about 40 min. later on the return trip. I'm guessing it fell in and landed on the ledge. It moved far too slow to swim. Anyone know what it is?

I was watching "Calypso's Search For The Britannic" from the "Jacques Cousteau Odyssey" series and was wondering what the white "balloon" looking things at the top of thier cylinders are. The program said they were diving to about 320ft and using a mix of helium, nitrogen, and oxygen. Here's a...

Scott,I'm interested in purchasing this pocket but would like to see how the grommet holes are positioned on the back.Is there any way you (or anyone else)could post a pic of the back of the pocket? An accurate description of the grommet locations including a center to center measurement between...

"Hello 101recon, it appears that you have not posted on our forums in several weeks, why not take a few moments to ask a question, help provide a solution or just engage in a conversation with another member in any one of our forums?" Well....Let's see.... If I take a few moments to ask...

This discussion raised the question: http://www.scubaboard.com/forums/5055523-post196.html It covered some points about drysuits that I have never considered.Dump valves and their location/operation for example. Being a new diver,I know little about drysuits,BP/W's,and countless other types...

Back in the day before GPS land navigation was accomplished by basically 2 things.An azimuth (compass direction) and a distance.I use my known pace count (the average number of paces I take per 100m) for reckoning distance traveled.While straight-line travel is often not possible due to having...

I find it very curious that many varied threads here seem to turn into the same basic old argument.Is the training for a certain individual in a certain situation good enough?Some always think so and others don't. I haven't been here long but I have already seen several threads go way off topic...

Just got certified a few weeks ago and am really looking forward to the many great dives to come.I've loved the water all my life and done just about every aquatic activity I could think of.....except scuba.Now I want to kick myself for not doing it sooner.I was totally hooked somewhere around...