Harpener Teiche (Bochum). Mine water outlet from the former Robert Müser colliery. On the trail of mining. The Harpener Teiche - also called Werner Teiche, are a network of still waters, some of which are fed by the Harpener Bach. This rises as Bövinghauser Bach in Dortmund and changes its name as it flows over the city limits to Bochum. Located in the immediate vicinity of the hustle and bustle of the Ruhr-Park shopping center, the recreational potential of the Harpener Teiche is surprising. Originally created as sewage ponds for the Bochum mining industry, the ponds offer walkers, cyclists and joggers an uncrowded oasis of peace. The only thing that stands out from this is the feed point for the mine water from the Robert-Müser colliery, with its loud noise and bubbling, which is responsible for the milky cloudiness and, at times, an unpleasant sulfur smell caused by the mineral-rich water. Seating is available for a break. There is also a wedding forest at the Harpener Teichen. A network of paths accessible from the west, south and north leads through a special flora and fauna.