The Caribbean is home to some of the most beautiful landscapes in the world, so it should come as no surprise that hotels there strive to preserve their natural surroundings. Some of our favorite resorts in the Caribbean Sea feature a variety of eco-initiatives. Check out our favorites here: With just 30 hippy-chic cottages in secluded Treasure Beach, Jake's is also a member of the eco-conscious Island Outpost hotel group (along with The Caves and the Geejam). Guests come to unplug -- there's no phone, Internet, or TV in the cottages. The black-sand beaches aren't conventionally beautiful, but the Driftwood Spa, on-site painting and yoga classes, and excellent food make this a particular favorite.