Go green in Costa Rica at the new Playa Nicuesa Rainforest Lodge. Solar-powered and constructed of naturally fallen trees, the cozy four-cabin compound occupies a 165-acre preserve within Piedras Blancas National Park that’s reachable only by boat from nearby villages along the Pacific Coast. Starting at $130 per person, including meals, the lodge saves you green, too. (866) 348-7610,