Kick off your sandals when you arrive to the island, and plan on leaving them in your room. You'll be walking around the island for the duration of your stay, might as well feel the sand between your toes. If you're a great swimmer and have some energy to burn, consider trying to swim a loop around the island... the hammock will still be there when you get back. Needless to say, there are no roads or vehicles of any sort on the island... not even a single sidewalk.
