I made my first dive with a dry suit in open water on December25th, 2005 off the east side of Big Mosquito Island in Jeju Korea. I had done a couple pool exercises the weekend before and figured it shouldn”t be a problem.

Our first dive was to 100 fsw. I was using Nitrox EAN 32 for this dive. The islands off this area of Jeju are old volcanic vents which the magma cooled and solidified in. Over a few millennium, the outer dome eroded off and left the solidified magma like a monolith rising from the sea bed almost 200 fsw below. This is wall diving. Read the rest of this entry »