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Hengsteysee is a popular reservoir in the Ruhr area, created in 1929 and located between Hagen, Herdecke and Dortmund. It was created by damming the Ruhr to improve water quality and serves as an important recreational area. The lake is surrounded by a 6.5km footpath and cycle path, allowing for walks and cycle rides along the shore. The route offers many opportunities to linger, with benches, playgrounds and small restaurants along the way. Hengsteysee is also attractive for water sports enthusiasts, with rowing, sailing and canoeing available. During the summer season, the excursion boat "Freiherr vom Stein" operates on the lake, connecting various moorings, including the Lenne estuary and Hohensyburg. The lake borders the Ardey Mountains to the north, providing a picturesque backdrop, while birdwatchers can spot many aquatic birds such as the Great Crested Grebe. Of historical interest are the remains of Niedernhofen Castle, which are hidden in the lake, and the so-called Mouse Tower, which used to be part of a pedestrian bridge. The proximity to Hohensyburg with its castle ruins and the Kaiser Wilhelm Memorial makes Hengsteysee an ideal starting point for exploring the region.

Always idyllic views of the Hengsteysee.

Beautiful lake with a great view.

There's always something going on there, especially when the weather is good and it's very crowded

Very beautiful hiking and cycling trails. Great nature. The Hengsteysee is a reservoir completed in 1929 and operated by the Ruhr Association on the course of the Ruhr between the cities of Hagen, Dortmund and Herdecke in North Rhine-Westphalia. It is one of the six Ruhr reservoirs and is named after the neighboring Hagen district of Hengstey. The lake begins in the course of the Ruhr approximately at the level of the Syburger Ruhr bridge, a good kilometer below the mouth of the Lenne, and its end is formed by the dam of the Hengstey run-of-river power plant with a dam height of 4.6 m. North of the Hengsteysee rises as part of the Ardey Mountains, among other things the Klusenberg. The 4 km long lake has a storage capacity of around 3.3 million m³.

The former aristocratic residence Haus Rodenberg in Dortmund-Aplerbeck originally emerged from a medieval moated castle on the banks of the Emscher and was mentioned in a document as early as 1290. Of the former gardens, only the outer bailey island, the surrounding moats, the house pond and remnants of the wall surrounding the main garden remain. Today the park area is a public green space in the center of the Aplerbeck district.

Nice lake with some restaurants. The old town of Herdeck is well worth seeing.

The Hengsteysee is located near Hagen below the mouth of the Lenne into the Ruhr. At the time of its commissioning, increased sludge precipitation and thus an intensive cleaning effect were achieved by mixing the acidic and iron-containing Lenne water with the alkaline Ruhr water. Today, it is primarily the Ruhr Association's state-of-the-art sewage treatment plants that ensure water quality, but the reservoirs still cannot be dispensed with as a fine purification stage for discharged rainwater and as a sediment trap for river gravel from the Lenne. In addition, the Hengsteysee has been used as a sub-basin for the Herdecke pumped storage power plant (Koepchenwerk) built by RWE since it went into operation. Due to pumped storage operation, the water level in Hengsteysee can fluctuate by up to 70 centimeters. In 1988/89, around 400,000 cubic meters of sediment that had been deposited from Lake Hengstey was removed using dredging. see also Ruhr Association