We are in Titusville, Florida home to many manatee. The locals tell us that there used to be a fresh water spring in the area that dried up. The manatee need fresh water to live. We were washing the boat and the manatee came flocking to drink the fresh water run off. Got some great pictures of the " so ugly they are cute" manatee. It seems that they get as much fresh water as they need from the boating community.