68 and you say brrr.... lol.
Floridians
Come do an ice dive up here in Indiana sometime, its a blast!
We have a local quarry thats approx 55 ft deep. Bottom 15 hardly changes from low forties in winter and maybe 55 in the hottest of summer. My computer doesnt record lowest temps, its more the temp of the depth I was at the longest. 68 is full wetsuit, hooded vest and some gloves here. But if you need to get into that lower 15 feet with only a wet-suit, things get cold real quick.
Those extra liquids help in those situatons.
I have always wanted to take the tube tour on the crystal river. Can you still do that?