Maho Bay Camps & Estate Concordia, U.S. Virgin Islands

800/392-9004 or maho.org

More than 30 years ago, the granddaddy of today’s eco-resorts opened on St. John with a radical idea: Travelers would willingly stay in tents with communal baths if it allowed them easy access to a deserted beach and ocean breezes. More than 1 million guests later, no one’s doubting.

Eco cred: From the arts center where guests create souvenirs from recyclables to a make-your-own-bed approach to housekeeping, Maho sets the standard for low-impact travel.

Insider’s tip: If a safari tent sounds too close to nature, try the newer Estate Concordia Studios―same concept but with a solid wall between you and the elements.