As savvy travelers to the Turks & Caicos know, those who have sampled only Providenciales have but skimmed the tip of the TCI iceberg. Case in point: this little eco-resort high above the swirling azure seas of Mudjin Harbour and the imposing iron-shore ridges of Dragon Cay. It's the only resort lodging in Middle Caicos, a magnificent but still largely undeveloped island of lush greenery and sapphire seas. This is nature at its wildest and most wonderful, and that means craggy caves, seas brimming with fish, great swaths of pristine bonefishing flats, sea glass dotting the sands, and, well, mosquitoes. Not to worry: The resort's eight units—five studio cottages, two two-bedroom villas, and one three-bedroom villa—have screened porches and A/C to help deter any unwanted pests.

Built of whitewashed wood and blue-tile roofs, the cottages dot an undulating sprawl of densely vegetated cliffs. The sunny interiors are done in a pastel palette, outfitted modestly but comfortably with good beds and fully equipped kitchens (Sunset has a kitchenette), not to mention big windows and patios that offer stunning views. You can bring your groceries in from Provo or North (the latter is limited) or have Blue Horizon provide grocery services before you arrive. The resort also has an in-house stock of wine, beer, and triple-filtered water for sale, and the day's catch (fresh grouper, lobster in season) is available upon request from local fishermen. You may not need to cook at all, now that the resort's new restaurant, Mudjin Bar & Grill, perched on a bluff overlooking Dragon Cay, is up and running, serving lunch and dinner.

Blue Horizon is a magical place to play in the great outdoors in peaceful seclusion: You can swim in Mudjin Harbour, explore nearby beaches in Hobie Mirage kayaks, or arrange an excursion with a local guide, including bonefishing expeditions and snorkeling and scuba-diving trips in the Middle Caicos flats.