Sihanoukville is Cambodia's main beach resort town, featuring kilometers of white sand beaches and  all-year-round warm and crystal-clear sea water. Sihanoukville is also surrounded by many tropical islands, most of them (still) unhabited. The town lies also near the Preah Sihanouk National Park (15 km) , the Bokor Mountain National Park (140 km), the Sre Ambel National Park (45 km) , the Prey Nob Mangrove Swamp (20 km) , places where wild animals and rare birds can still be spotted .

Main tourist attractions are the popular O'Cheatil and Serendipity beaches, usually crowded during the week-ends. Amongst other, less frequented beaches, Otres Beach, a few kilometers south of town, is called "the Jewel of Sihanoukville" for its pristine, warm waters, nice breeze and the incomparable islands' view.