NanciL did an excellent job describing the parks, especially how they relate to kayaking and bicycling. Our likes are a little different as we travel with dogs, and like to take them to the beach. Our boating is limited to powering around in out Avon inflatable dingy. Last winter and this coming winter, we weren't able to land any state park reservations, so we have resigned ourselves to private campgrounds - which aren't that easy to get into either.
That being said, from north to south: Pennecamp has been refurbished most recently and, as said, is the only one with full hookups. Dogs aren't permitted on the beaches in any state park. There are many restaurants, etc. within easy driving distance, but not many you can bike to. Long Key definitely has the nicest views as all sites are waterfront, and we can anchor out the boat right off the beach. Islamorada is the closest place for a selection of stores and restaurants, but too far to bike. When the wind comes out of the south, it can be very bothersome as it hits you head on. Curry Hammock has nice level sites, but only a few have ocean views. Due to the layout, it is more conducive to socializing, and has weekly jam sessions on the beach, etc. There are a few nice places to eat within biking distance, and Marathon, where there is tons of stuff, is an easy drive. It is very close to the public and dog friendly Cocoa Plum beach, which isn't much for swimming, but the dogs love it. Marathon also has a great dog friendly public beach - Sombrero Beach - complete with rest rooms, trucked in sand, and decent swimming. The Waterfront sites at Bahia Honda are fantastic! Beautiful views of the pass and great sunsets. There is pretty good swimming right off your waterfront site, and there is a store and snack bar on site also. Big Pine is the closest group of stores, etc., but Marathon is also within decent driving distance. Bottom line is you really can't go wrong wherever you get in .....
If you have any specific questions, just ask!
