HomeAbout HHNKLearning about waterAdultsAdultsLectures on work HHNK Request a lecture here about the work of the water board. Beetskoog pumping stationThe historic Beetskoog pumping station in Oudendijk is open to the public on a number of Sundays. Admission is free. Treasures from the shelfThe highlights of our water heritage collection can be admired in the permanent exhibition Waterschat (Water Treasure). App West Frisian OmringdijkOur free app brings the traces of the battle against water to life with stories, photos, and maps. Did this information help you?YesNo