The manatees love it warm and so they come to spaces where they can warm up when the weather and thus the water gets colder. Although they look so chubby, they can not survive in cold water and therefor they seek the warm outspils of power plants or the springs. at manatee springs about 100 million gallons of water swells up each day and the water is constantly 68 fahrenheit, even in winter. An awesome boardwalk follows the mangroves to the nearby river suwannee, but the manatees stayed in the midle of the creek and therefore i couldn´t take pictures. But you can watch manatees here.