110km away from Sihanoukville is Kampot and another 18km from Kampot is Kep. Not sure how much you gotta pay if you wanna go there by bus or taxi because I took a dirt-bike ride. Yeahaa!!
Kampot is a very quiet town with nice mountain and riverside view and heavy French-influence architecture on many of its buildings. And of course famous for its very own pepper plantation.
Meanwhile for Kep, not much to do here, however the scenery is fantastic. Largely unpopulated, Kep was Cambodia’s original seaside resort town. You can get the best crap here. And I overnight at USD75 per-night The Veranda. Showing off? Hell yeah. Hahaha!