dbohar,
I considered taking a course but haven't gotten around to it. Your
buoyancy control has to be perfect. Just couldn't see what would be that
interesting in a cave. Plus you have to reconfigure to a long hose. I
might give rebreathers a go at some point but for now open circuit is fine.
Paul


wrote:
Cave diving is one of the few things I will not try. It is one of the
few sports where almost ANY mistake is fatal. I am glad some people do
it but I consider it to be an elaborate form of suicide.