Barry wrote:
How can I deal with the sauna that is created below my skirt when out in
ocean waters and the air temps are high? I know there must me a way to deal
with it. I suspect that I can have someone make a custom skirt out of
Gortex or similar material but it would probably be expensive.

Opening it periodically helps. Rolling or sculling periodically to wet
the skirt and deck will help keep the temp down. For summer use, we had
Brooks make us a couple of white neoprene skirts. They work quite well.

The problem with using any kind of fabric skirt is that they leak around
the coaming and at the top. If you don't consider that a problem, there
are waterproof/breathable skirts on the market.