Above Baie Longue on the French side of Saint Martin, La Samanna is a luminous Caribbean retreat of white arcades, striped parasols, palms and pale sand. Rooms, suites and villas are airy and elegant, with crisp linens, nautical touches, terraces, sea views and, in larger villas, private pools and generous indoor-outdoor living. The resort moves from beach cabanas and two pools to LaPlaj, L'Oursin, the wine cellar and spa, keeping its rhythm relaxed but polished. Its sense of place comes from French Caribbean ease, clear water and the sweep of the bay below.