In the surroundings of Rjukan Hytte you can enjoy lots of water fun in different ways. For example, take a swim in the nearby lake Tinnsjø or in Rjukan Badeland. A swimming pool with slides, bobble baths, sauna, solarium, etc.
Or, what of relaxing in one of the small river creeks, where the water runs into the rocks bowls, which is very pleasant. Lovely!