In Phnom Penh, we went to visit the S-21 death camp where Pol Pot and his regime killed thousands of people, then went to the killing fields were mass graves were made.
Sihanoukville is a small, chill place to hang out for awhile. Lots of westerners working in the bars and restaurants though, which was weird. We got extorted by the police who demanded $10 from us for driving a motorbike without a license.
To get to the secret watering hole, take a motorbike to the iBall Adventure Park (look at the free map around the city in tourist publications.) There’s a friendly Irish guy that owns the park, and he’ll tell you how to get there. It’s within walking distance. Also, there is a small house outside the entrance to the waterfall, so please be respectful.