The approach to Rondvassbu is done either with a bike or by walking on the dirt road from the "Spranget" parking lot. Preferably this is done the previous day. You can either camp in a tent or book in at the Rondvassbu tourist cabin.

From the yard at Rondvassbu there's a sign to the trail which goes up the hill behind the cabin, starting with stairs of rock. After approximately one kilometre there's a crossroad which splits the trail into the path to Storronden and to Rondeslottet. Take a left and follow the path to Rondslottet into the valley. At the valley floor there's a river with fresh water - this is the last chance to fill up your bottles.

Follow the trail up to the col between Vinjeronden and Storronden, before it turns to the left up the steep hill to Vinjeronden. This is the "little brother" of Rondeslottet. From the summit of Vinjeronden there's a little descent before the final climb up to Rondeslottet.

There is a huge cairn at the relatively flat summit plateau. From the top you can descend the same way as the ascent; back to Rondvassbu. Alternatively you can descent the east side along the marked trail to Bjørnhollia.