 
After hiking around the beach for a couple of hours, I went looking for shade.  There are 12 very rustic cabins on the island.  I don't think they have electricity either.  I sat at a partly shaded picnic table and sketched this cabin.  It was closed because of the eagles nest just off to the left.    Florida is great about wildlife protection.  If a sea turtle lays eggs on the beach, it's roped off, the same as with eagle's nests and burrowing ground owls.