I live in Florida also...
I'm new to bikes still so my dad took me riding once to get better. We were riding in some nice grass and then it changed to sand. I stayed in the grassy parts while my dad went in the sand. Then, he just stopped. His bike didn't do well in the sand, but I just laughed cause I was doing real good. I tried the sand and I got stuck! He then got out and was riding away but I was still stuck in the sand. I couldn't get out. I tried and tried but I couldn't get out. I could't even push the bike out. I was there for about 10 minutes trying to get my freaking bike out, but it wasn't moving. So, I had to ride my dad's while he got mine out. I don't like his bike. I couldn't even pull the clutch in cause it's so hard! I had to use TWO hands so I almost crashed. Boy, that stunk...
I don't think I was in the same sand as yours. Then again, maybe you have some special tires or something. I don't know, I just didn't like it... Hey, what part of Florida are you from?