Bermuda is usually formal, but there’s no need for evening dress at this casual out-post. Six of the 84 rooms are over-the-water cabanas (as shown) that include a window in the floor so you can peer down at fish.
Eco cred: Ocean breezes make using air-conditioning unnecessary, so your carbon footprint practically disappears.
Insider’s tip: Hi Tide, the resort’s main restaurant, turns out some of the best meals on the island. Try the blackened rockfish with grilled shrimp and dill sauce.
Nestled between Los Padres National Forest and the Pacific Ocean, this getaway remains true to the region’s hippie roots. The comfortable yurts include queen-size beds, pine flooring, and decks overlooking the coast. Guests can hike through redwood forests, kayak in the marine sanctuary, or indulge in an in-yurt massage.
Eco cred: Treebones heats its pool, hot tub, and common areas with a clean–burning generator.
Insider’s tip: Is a yurt too tame for you? Spend the night up a tree in an eco-nest, a bed of woven wood, bird’s nest style.
Yediburunlar means “seven noses,” the Turkish description of the seven bays that make up the Turquoise Coast at the Mediterranean’s eastern end. This six-room inn delivers seclusion in a big way. Though the structure isn’t technically a lighthouse, guests will find sweeping views of the sea where Jason and the Argonauts once sailed. Activities include coastal hikes, local excursions, and sailboat cruises.
Eco cred: Solar panels heat the water, and recycling is a priority.
Insider’s tip: Innkeeper Semra Aydeniz welcomes guests into the kitchen to learn how Turkish specialties are prepared.
Although nearly a century old, this New England classic can teach eco-upstarts a thing or two. Guests drawn by sweeping Atlantic views, the heated saltwater pool, and a private beach also get organic foods and a nature education program.
Eco cred: The Colony composts waste and has banned plastic foam containers, aerosol sprays, and plastic bin liners. Trash baskets in each room have four compartments, allowing guests to sort recyclables.
Insider’s tip: Pick up a recycled souvenir. The hotel turns worn bedspreads and linens into handcrafted dog blankets.
Arrive at this Indian Ocean retreat on the hotel’s private plane. Once settled into one of 25 rosewood villas, guests can take guided hikes through the tropical forest, snorkel, mountain bike, or even water-ski.
Eco cred: Anjajavy has brought economic development and health programs to a remote and poor corner of the island. The property is next to an 1,100-acre nature preserve.
Insider’s tip: Don’t miss afternoon tea in the Oasis garden, where birds and lemurs are as much an attraction as the cake.
8 of 10Courtesy of Maho Bay Camps
Maho Bay Camps & Estate Concordia, U.S. Virgin Islands
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.
Going green doesn’t mean giving up luxuries at this eco-chic getaway about 15 miles north of the Costa Rica border. Perched in the forest, open-sided bungalows await guests, who can fall asleep to the sound of the Pacific and wake to the calls of monkeys.
Eco cred: The 4,400 acres remain a nature preserve and sustainable tree farm, where 1.5 million trees have been planted in the past decade.
Insider’s tip: Order a rum drink. Sugarcane is grown on site, and the resulting molasses is distilled to produce a sweet, potent spirit.
The Dominican Republic offers more than giant resorts and all-inclusive buffets. Natura Cabañas shows another side of the Caribbean, with a private beach for just 11 palm-thatched bungalows. The modern spa’s services include a heavenly chocolate wrap.
Eco cred: The cabanas are built from natural materials. Screened walls and windows keep it comfortable without air-conditioning.
Insider’s tip: Unwind at the resort’s new yoga pavilion. Classes include one that mixes yoga and Pilates.