Dan Luke wrote:
My buddies and I surfed at those beaches this time of year when we were high
school kids. We wore full wet suits. 60 deg. F water will turn your grapes
to raisins in no time.

I dive and 65-70F is acceptable with a 3mm wetsuit, even at depth... I
currently use a 5mm FJ style, thus 10mm in the torso area... It's quite
acceptable for 70F Florida caves even when you're down for an hour or
so... We used to do those same caves without a wetsuit, but after hiking
a mile through the woods to get to the cave in 95-100F weather, the 70F
water felt really good...