The Keys are a notorious party spot for Jimmy Buffet-worshipping Parrotheads, but Little Palm, on Little Torch Key, is a postcard-perfect oasis of calm and reflection. Long a hidden playground for presidents and celebs (with pricing to match), Little Palm offers a choice of 30 oceanfront suites in thatched-roof bungalows and five-star appointments all around. There's also a fitness center, a private beach (the entire 5-acre island, in fact), a bevy of spa packages, and the staff is happy to book day adventures, from fishing to boating to scuba diving and more. Guests must be 16 or older. [From $890 a night; littlepalmisland.com]