Why Florida’s springs become winter refuges
Manatees are large, but they have little protection against prolonged cold. When Florida’s shallow bays and rivers cool, the animals move toward water that stays warmer and more stable. Natural springs provide that refuge: groundwater emerges at a nearly constant temperature, so a spring can remain comfortable for manatees even when surrounding waters turn chilly.
The animals may arrive from nearby feeding areas and gather at a spring’s outlet, where the warm water enters a river. A limited number of suitable refuges means many manatees can converge on the same stretch of water. The crowd is a response to the conditions, not evidence that the animals are huddling to warm one another.
A seasonal crowd with a practical purpose
For visitors, the concentration can make manatees easier to see than when they are dispersed across broad waterways. But the same bottleneck that creates a memorable sight also makes the refuge important: the spring’s warm water gives cold-stressed animals somewhere to wait out winter conditions.
That is why the scene is tied to particular places and seasons. When surrounding waters warm again, manatees can spread back into the wider waterways. The hundreds gathered at a spring are not simply passing through; they are using a dependable pocket of warmth in a much larger, colder landscape.
