Dogbowl
Contributor
39c / 102.2f. Barracuda Lake, Coron, Philippines.
97F is body temperature so technically you could dive in water this warm forever without losing body heat...but if you dived say for an hour in 102F, did you get an artificial fever? How did you feel after the dive?
I once had my temperature taken in hospital shortly after getting out of the shower. The nurses thought I had a fever and nearly sent me to the ICU until they realized I just got out of the shower.