Since the cruise is one month before my wedding - i think I'll NEED the Castaway 5K after all the food pictures I've just drooled over on the Dream. And then yesterday I went for my run outside (instead of the treadmill) and it was 95 and I about DIED. And I only ran like 2 miles (ok ran 1, walked 1 - guilty). A 5K in that heat - I'll need a fresh drinky drink at the finish line followed by DIVING into the water.
Do NOT go running out in the heat, woman! I've lived in the south my whole life and I can't do it. I've had mild bouts with heat exhaustion a couple times from trying. It's just not worth it. Run early or late but not when the sun is really up there. Drink tons of water and be smart!
That said, do you realize how stinkin' hot the CC5k is gonna be? I'll do it with y'all but I'll have to not drink the day before and be ready to crash for an extended nap after. However, we could get up early on CC day and do a group deck run. I can do that every day if you want!