Constructed entirely of concrete and set in tropical forest, the four buildings of this hotel echo the gray granite boulders strewn around Vieques and blend seamlessly with the environment. Does it make for luxurious design confection or island jail? Award-winning architect John Hix's design gets mixed reviews from visitors. A spare aesthetic permeates the rooms, which, according to some, have dramatic lines and sexy curves. Others might find the property cold and uninviting, regardless of inspiration and originality. Sunny terraces, panoramic open walls, and private outdoor showers keep nature nearby, though the nighttime songs of coqui frogs might disrupt your sleep. The resort's embrace of the environment goes beyond form into function, with the use of recycled water and solar-power systems. Even the swimming pool is eco-friendly.