The gateway Commanderij Gruitrode is the ideal starting point for a walk in Duinengordel. De Ranger leads you past special places and tells you more about life on and around this historic water castle. Humans and beavers built castles at this location on the Itterbeek. Date: Sunday, July 5 Start location: parking Commanderij Gruitrode Address: Kasteelstraat 2, 3670 Oudsbergen (Gruitrode) Departure: 2 PM Duration: 2 hours Participation fee: free but advance registration is required. (This activity is offered by the municipality of Oudsbergen).