Cayo Costa is truly getting away from everything. Primitive camping only, and reachable only by ferry (must reserve ahead) or private boat. There are a few cabins to rent, but very basic shelter with only a wood platform for sleeping. There are showers and restrooms - but bring a flashlight if its dark. No electricity. There are carts to load your gear in to get it off the dock from the ferry, and a golf cart/tram or truck will take you back to the camping area. Lots of areas to explore - don't forget to find the old cemetary. The beach is great, and the shelling is awesome. You can purchase wood for fires at the ranger station. Bring all of your food and water. There is nothing out there once the last ferry leaves for the day with the daytime beach goers you are alone! No seeums and mosquitos are plenty, especially on the beach, so bring spray. This is by far our favorite place to go camp and get away from it all. And there is no phone service ;)