Ban Lung’s top tourism attraction is a volcanic crater filled with freshwater and surrounded by an easily navigated trail that can be walked in less than an hour. Another 850m path takes you up into the forested hill beside the lake and leads to the road from the main entrance. There are three wide wooden docks to stop off and jump in for a cooling swim. There’s a $1 entrance fee for foreigners who must pay an additional 500 riel to enter a cultural centre with a small array of ethnic minority items on display.