Koh Rong Sanloem
The Sihanoukville coast is flanked by many islands, many of them lightly populated by Khmer fishermen, and only some accessible to tourists by boat. Koh Rong Sanloem, Koh Tas, Koh Ta Kiev, and Koh Russei are the most popular destinations with snorkeling, scuba-diving, kayaking, and beachcombing drawing travelers. Accommodations include everything from rustic bungalows to chic beach resorts. Ferries and speedboats run frequently throughout the day from Sihanoukville to Koh Rong Samloem (30 to 40 minutes, from $20). Choose the location of your accommodation carefully, because while there are tranquil beaches for those looking for a relaxing stay, there's also a wild party scene. The amenities vary depending where you go. The jungle interior of the island is home to some of the deadliest snakes in Cambodia. They are more afraid of you, of course, but be aware.