I was browsing through Keith’s photos of Sihanoukville (the above are cropped by me). I’m not much of a beachgoer, and dislike the in-your-face sexpat scene on the most touristed beaches on this coast (thanks to tightened regional visa restrictions). But if you avoid Serendipity and move farther east along Ochheuteal Beach there are less sexpats and more local crowds, so it can be a nice day trip from Phnom Penh for the family. Most of the other beaches have been / are being privatized, with fees to enter those areas. They’re nice and quiet if you really want to get away from people.