Visit Moose Garden, one of the region's most famous hotels. Stay a few nights or simply take a look around.
You'll have no end of sightseeing choices when visiting Orrviken. Moose Garden is a great place to start here, but there are many other interesting places to consider. Östersund-Frösö GK, and Froso Church are close to the place to stay and and will cap off your day nicely.