My parents live on Big Pine Key for 4 months during the winter. They love it. They have an RV and stay in a place called Big Pine Fish Lodge. It's in the key deer preserve, grandfathered in. Definitely on the rustic side, but also incredibly beautiful. My dad is steps away from his boat. Camp management is very competent and puts up with 0% BS.
Pretty amazing to be sitting there having a drink at night around a campfire, and have an 8 point buck that's only 3 feet high come up and beg for a bit of lettuce.
www.bpkfl.com