There's no word yet on when the U.S. Fish and Wildlife Service will reopen the springs.
While these manatees are lolling around in their warm bath, life isn't always so easy for the species. The main cause of death for manatees is conflict with humans, particularly habitat destruction and ship strikes. As slow-moving mammals, they often don't move quickly enough to avoid speeding boats, and are hit by propellers. Scientists can even identify them individually by the scar patterns on their backs. Speed limits and educational materials have been encouraged as ways to help reduce boat collisions.
Conservationists also worry that the constant presence of tourists and swimmers can put stress on the animals - which is why the closure is surely a welcome break.
See this page for more information on how to save Florida's iconic sea cows.