The An Thoi Islands, south of Phu Quoc but still part of its marine park, rise from the sea, gentle hills covered by tropical forest. It’s possible to charter a boat and go snorkeling and diving during the dry season (November through April), or just enjoy a sail among these idyllic specks of dry land. Most tours of the 15 islands depart from the village of An Thoi, on Phu Quoc. The largest island in the archipelago is Hon Thom, or Pineapple Island, and it’s also the most populous with some 4,000 residents. Hon Rut is another popular island for day-trippers, with opportunities to visit its pearl farms.