Sihanoukville is Cambodia’s main beach city on the Gulf of Thailand and the gateway to the islands of Koh Rong and Koh Rong Samloem. Otres Beach and the beaches of Ream National Park are the quieter stretches, and the seafood restaurants along the shore are the reason many people stay an extra night.
How long: 1–3 days. Best time: November to April, in the dry season.