Crankin, I do get it about that heat and humidity. Check my posts about our recent Florida visit back over labor Day week. You really, really have to go slow and give yourself time to acclimate to that heat. It can be a killer - literally - for us northerners who push too hard. My first ride, this year, was a whopping 6 miles and it wiped me out. By the end of the week, though, I could manage 20 miles, but ONLY if I drank water, a lot of water. As Emily says, everyone did the outdoor thing early in the morning, down there.

Have to say, though, that I wouldn't complain if we had some of that heat up here, today. Highs in the 40s at ride time. We actually cut our ride short because we didn't dress, right. Hubby had no gloves and was very uncomfortable. Called it quits after only a couple miles, then I spent the rest of the day doing trail work, removing rocks, debris, roots and anything that could trip up a standard MTB. Three hours of that and I was really pooped.