Live Life Xtreme Conservation Manatee Women’s T-Shirt. Classic fit ladies scoop neck t-shirt. 100% cotton jersey. If you want to swim with manatees, one of your best bets is Crystal River Florida, The “Home of the Manatee” plays hosts to hundreds of manatees every winter. They are drawn their because of the areas numerous freshwater springs that keep the water temperature at 72 degrees year round, including during the cold winter!