Koh Rong.

Koh Rong, Cambodia’s second-largest island, maintains a low-key, unpolished charm that sets it apart from more developed Gulf of Thailand destinations. With no proper roads, getting around this jungle-fringed escape means walking along footpaths or hopping on local boats. The main draws are the striking, undeveloped stretches of sand, particularly the seven-kilometer expanse of Long Beach, and the vibrant coral reefs ideal for snorkeling. Beyond the coast, visitors can hike through dense inland rainforests to hidden waterfalls or kayak through quiet mangroves. The island’s most magical experience happens after dark, when swimmers can wade into pitch-black waters to stir up glowing blue bioluminescent plankton. It is a slow-paced haven of simple beach bungalows, quiet bays, and raw tropical beauty.