As manatees can’t survive in water below 60 degrees, they migrate to Kings Bay and the adjacent rivers every winter, which are an average 72 degrees all year round. Crystal River is 70 miles north of Tampa, the epicenter of manatee-watching.
Hot-Spring Hopping in Central Florida averages winter highs of has more than 240 days of sunshine a year & 700 freshwater springs. Each crystal-clear springs maintains a year-round temp of Blue Springs State Park
There's a Place in Thailand Where You Can Swim With Elephants