In the winter, manatees ("sea cows") like the warm water of a canal between the Caloosahatchee and Orange Rivers, where the recirculation water from a power station is discharged.
(Linked to Monday Mural.)
The property is owned by Florida Power & Light but maintained as a state park.
Manatees don't have much fat, so they migrate toward warm water when a cold spell hits Florida.
A couple dozen manatees were there when I visited. They spend most of their time submerged, at most exposing their backs. Nostrils appear above the water line for an instant to catch a breath.
This manatee bears scars from boat propellors.