I have swam once from the boat ramp to the cave at Cannonball. It was about 15 degrees air temp, took about 15-20 minutes with doubles, and deco gas. Our plan was a dive to about 220 feet, so we didnt want to do the hill after such a dive. We got to the cave only to find it was blowing very strongly, and we couldnt get in. So, back up we went, and swam back in the 15 degree air, packed up and went home.


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