A.W.
Hi - Sorry I'm late, but I second what everyone else said: too cold to go swimming in January. We've been to Naples several times in the winter (not by choice, my in-laws live there), and it's usually in the 60s/70s. Also, I don't think there's much to do in Ft. Myers without a car. I'd go to the Caribbean if you can afford it - much warmer and more to do.