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 »
Last time we talked about surface air consumption rate and how to calculate it using an Aluminum 80 cylinder. But what if you change to a different sized cylinder? This time, I”ll show you how to convert your Surface Air Consumption Rate to Respiratory Minute Volume so you can calculate bottom time with different sized cylinders. Read the rest of this entry »
Perhaps one of the most difficult concepts for beginning divers to grasp is Surface Air Consumption Rate or SAC. Don’t feel bad, many seasoned divers also have difficulty with this. So, what is it and why do I need to know it?
Read the rest of this entry »
Well, there hasn’t been a lot of diving since the end of June due to the Monsoons. In fact, there hasn’t been any. But it looks like it’s going to stop in another week. So, we’ve decided to get another Open Water course in before Typhoon Season starts.
Cost is 700,000 which includes student materials, all rental equipment for the entire course, four confined water dives and four open water dives. You will be required to complete the academic portions of the course online at SSI’s web site. We will provide you with instructions on how to login when you sign up. The schedule is as follows:
Sat, Aug 15th – Meet at the Doo-Ryu park swimming pool. Review knowledge reviews from the online course, take test. Confined water 1 & 2.
Sun, Aug 16th – Open Water 1 & 2 on East Coast
Sat, Aug 22nd – Confined Water 3 & 4 at the Doo-Ryu park swimming pool.
Sun, Aug 23rd – Open Water 3 & 4 on East Coast
(course locations and schedule subject to change if the weather doesn’t cooperate)
Sign up deadline is July 3rd. Contact Frank or Bob from wetROKsdiving at info@wetroksdiving.com.