We are heading for Dettarfossen. That's ice pillars in Heidal. It's on the 440 and park here (61.74604,9.25489). Follow down the lumber road till to the powerlines. Turn right and follow that path. At the third pole, comes down the stream. Follow that down. The fall to the west is the easier one. For the west fall we rappelled twice 40m till we were above the fall.