Nothing like an invigorating 2 mile open ocean swim to wrap up your Labor Day weekend.
http://www.news4jax.com/news/29088186/detail.html
http://www.news4jax.com/news/29088186/detail.html
-SO SAYS THE LAND LOCKED GUY FROM NEW JOISEY.It might take me more than 3 hours since I don't swim very fast ...
I bet the water is probably close to 80 on the Atlantic side, 90 on the Gulf side. Swimming obviously raises your body temperature as you expend energy. A two-hour swim will easily ward off hypothermia under these conditions. If anything, the water is warm for a strenuous swim. Hypothermia would only occur after an individual loses the energy to swim and simply lays in the water. Even laying in the water would take far more than a few hours in those conditions.
Considering that the fellow may be an over-weight beer drinker (but we don't know anything about him), losing energy for swimming could occur relatively quickly, but then fat tissue is an effective insulator.
But I also agree that a swim in the open ocean is no piece of cake and if land isn't visible, then it would be difficult to give up any security. At two miles, you might only see land while on top of a swell. but considering that the sun was probably setting while swimming, he would just have to follow the setting sun (if swimming in the Atlantic).