Is there a gym open to the public with available day passes in the Sowal area?

We're counting down our days until we hit Seagrove and I'm thinking that with all of the fabulous food that I plan to eat a few trips the gym would be a plus!

I know, I know just walk on the beach-thing is I like to do that best with a go cup of wine or margarita which defeats the purpose of exercise to burn extra calories!

I need some AC and a couple of cardio machines if I can find them!! I've been a good girl and steady at the gym for months now and I don't want to totally blow all of this hard work on too much good food and relaxation!

Any ideas?