Seimsåsen activity center was established in 1999 to be the main construction for skiing and other outdoor activities in Årdal. The ski resort has about 10 kilometers of trails, included trails to Paradisjuvet and Slettedalen - two beautiful destinations. Seimsåsen has also got a cabin called "Aosahytta". This cabin is possible to rent for meetings and conferences. In the winter-season the activity center has got a skiing carousel. The opening of the activity center is mostly decided by the weather condition in the wintertime, but it usually opens around 01. december.