Slettafossen is a waterfall that lies in the municipality of Rauma, to the south of Åndlasnes. It is a popular visitor attraction. The waterfall is fairly easily accessible, lying near to the railway and the main 136 highway. Slettafossen is a high volume rapid torrent fall. It forms part of a wild and beautiful stretch of the Rauma river. There is a kiosk here that sells refreshments and souvenirs during summer.