Casa Las Tortugas Petit Beach Hotel & Spa

Thirteen turtles came ashore the night before this adults-only boutique hotel opened on Isla Holbox, and the name wrote itself. Rooms and suites climb from beachfront level up to rooftop terraces with private pools over the Gulf of Mexico, and shoes are optional throughout. Yucatan honey toiletries, woven hammocks, and complimentary morning yoga set the tempo. Three on-site spots cover Mediterranean-Mexican on the sand, Japanese cocktails at sunset, and a kitchen running on local organic produce.

One honor, in evidence: