I Passage key nude boating that this is a national wildlife refuge, and also carries the name of Naked island. We Passage key nude boating in 2 feet of clear blue water and enjoyed hours of peaceful time bobbing in the water and just hanging out. Wow, As the afternoon progressed there was less and less clothing with loads of people completely naked and as the drinks started to sink in it progressed to all sorts of craziness. Powered by Weather Underground. We enjoy going out to Passage Key to see all the beautiful birds on the island and the snorkeling is fabulous.