We stayed here last November
http://www.bluewaterkey.com/. We looked at a lot of parks when we were there, this one is worth the extra you pay for. Private sites, most ocean front with private boat dock, Tiki hut, all individually owned and decorated/landscaped different. Has laundry, swimming pool, all paved roads, concrete pads, gated with a pass code give at check in, and just 12 miles north of Key West. A thing to remember if your tow vehicle is over 20' long, while in Key West, it is illegal to park on the streets of Key West. This is not just a simple parking ticket, it is a ticket, tow and impound. We were talking to a couple that thought they had their truck stolen, this is how they found out. Also read a article in Trailer Life on Key West reminding me of the little known law. I didn't, but found it almost impossible to find a spot for us to fit in ( we are 24' long ), we found a bank parking lot and asked the folks inside if we could park there, they gave us the go ahead.