Ventanas al Mar, Windward Coast, Cozumel $$$$
Concierge.com's insider take:
Though guests at Ventanas tend to turn in early, those awake around midnight can watch meteor showers flash through the sky or witness the heart-wrenching labors of a pregnant sea turtle digging her nest deep in the sand. This place is all about natureit is the only hotel on Cozumel's windward coast, and it uses wind turbines and natural wells to provide electricity and water. Isolationists bring groceries and set up housekeeping in large suites with tiled kitchenettes; breakfast is served on the courtyard patio, and there's a restaurant (closed at dark) next door. Otherwise, it's pretty much you and the sand and the sea. And with only 12 rooms and two suites, you'll feel almost like you have the place to yourself.