The Weeki Wachee river is clear and warm. Paddling down river one can see down to the (generally shallow) sandy bottom. The temperature (72 !) is just right for manatees. A group of manatees were relaxing in a spot called Hospital Hole, known for its sulfur spring. Fish crowd the sandy bottom and manatees squeeze in as well, indifferent to a small crowd of kayakers ogling them.