Bioluminescent Bay, Salt River Bay National Historical Park and Ecological Preserve, near Christiansted, St. Croix, United States Virgin Islands - Salt River is home to one of two Bioluminescent Bays or Bio Bays on the island of St Croix (a second Bio Bay can be found at Altona Lagoon). Bio Bays are extremely rare with "only seven year-round lagoons known to exist in the Caribbean".
Milky Way, Song Saa Island, Cambodia. Song Saa Private Island Hotel in the Koh Rong Islands is an eco-luxe escape spread over a pair of pristine isles, with thatch and stone villas. Koh Rong, is the second largest island of Cambodia.