The Eco Villa at Six Senses’ Soneva Kiri resort is best identified by what it lacks: carbon emissions. This environmentally friendly accommodation—which Six Senses intends as a prototype for its future properties—is one of 42 villas at Soneva Kiri, a stylishly sensitive beach resort that opened on Thailand’s Koh Kood Island. Visitors staying in the Eco Villa can select a bottle from the accommodation’s wine cellar to pair with dinner. The villa also features a swimming pond, as well as a bush-filled garden that grows out of a cellulose-insulated roof. Since its launch in 1995, Bangkok-based Six Senses has been committed to eco-friendly building methods. But the environment has never trumped indulgence at the company’s resorts. At the 150-acre Soneva Kiri, butlers service each of the villas, where bathrooms are outdoors but still feature all of the comforts of a marble-laden interior space. Accommodations Forty-two villas. Recreation Catamaran excursions on the Gulf of Thailand and evening screenings at Kiri’s over-water theater, Cinema Paradiso. Dining Contemporary Thai cuisine at the resort’s fine-Dining restaurant or in one of several elevated venues called Tree Pods. Rates Beach villas start at about $1,200 per night.