It’s not quite Providenciales’s celebrated Grace Bay—the Atlantic surf rolls in with a little too much force for that—but North Beach, on remote, undeveloped Salt Cay, is one of the prettiest stretches of sand in all of the Turks and Caicos. Salt Cay also has the advantage over its more famous counterpart in that just about the only thing on it is the tiny Castaway, whose guests almost always have miles of pure white sand and turquoise ocean entirely to themselves. About a mile and a half from “town” lies a scattered settlement of fewer than 150 people who make up most of the island’s residents. Castaway, which consists of four suites in two beachfront cottages, offers a Crusoe-like experience, except with private dining and Wi-Fi. Each suite has a king bed, to which two more single beds can be added, a full kitchen, and a deck where in season it is possible to watch migrating whales parade by.