The Gråsten Castle and the Castle Garden is beautifully surrounded by the local natural surroundings with forest and lake. Many guests enjoy the many hiking trails around the castle.

The castle is from 1759 and is the successor to several castles, which has been on the site since the 1500s.

There will also be regularly arranged guided tours in the castle gardens and the castle church. The tourist office in Sønderborg organizes these.