Best lakes around Wetter (Ruhr) are primarily part of the Ruhr reservoir system, offering diverse recreational opportunities. The region features the Harkortsee and Hengsteysee, both integral to the Ruhr River's course, alongside the nearby Kemnader See. These lakes provide a blend of natural landscapes and developed paths for various outdoor activities. The area is characterized by its reservoirs, which serve as popular destinations for both active recreation and relaxed strolls.
Last updated: May 25, 2026
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The Hengsteysee is located near Hagen below the confluence of the Lenne and the Ruhr. At the time of its commissioning, the mixing of the acidic and iron-containing Lenne water with the alkaline Ruhr water resulted in increased sludge precipitation and thus an intensive cleaning effect. Today, it is primarily the Ruhrverband's ultra-modern sewage treatment plants that ensure the water quality, but the reservoirs are still essential as a fine purification stage for discharged rainwater and as a bedload trap for river gravel from the Lenne. In addition, the Hengsteysee has been used since it was commissioned as a lower basin for the Herdecke pumped storage power plant (Koepchenwerk) built by RWE. Due to the pumped storage operation, the water level in the Hengsteysee can fluctuate by up to 70 centimeters. In 1988/89, the sediment deposited up to that point, amounting to around 400,000 cubic meters, was removed from the Hengsteysee using a dredging process. s.a. Ruhrverband
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Impressive building and now almost 150 years old.
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The Ruhr Viaduct in Herdecke spans the valley with a length of 313 m and 12 semi-circular arches, each with a span of 20 m.
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The weir seen from the bridge has four openings closed with hydraulically operated flaps. Next to the weir are the fish ladder and the boat alley. In the case of large floods, the entire system is flooded. In 2011, a hydroelectric power station was built on the right side of the weir. The entire Ruhr flows through the power plant and enables electricity to be generated by around 3.6 million kWh annually.
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The weir has four openings that are closed with hydraulically driven flaps. Next to the weir are the fish ladder and the boat alley. In the case of large floods, the entire system is flooded. In 2011, a hydroelectric power station was built on the right side of the weir. The entire Ruhr flows through the power plant and enables electricity to be generated by around 3.6 million kWh annually.
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A very beautiful part of the Ruhr Valley Cycle Path and the Lenne Route. Hengsteysee and Harkortsee belong together like brother and sister. Both are former bodies of water used by heavy industry that have been converted into well-used recreational waters with good water quality, flora and fauna. There are plenty of places to stop for a break around Hengsteysee and Karkortsee. Note: In many places there are designated cycle facilities (sign 237) and designated pedestrian paths (sign 239). For those walking or running, whether with children and dogs or alone, please use the paths specially set up for you and do not walk on the cycle lanes. Just as it is our duty to use the cycle lanes, it is our duty for pedestrians to use the footpath. Below the serpentine road coming from the B54 is a biker meeting point Hohensyburg 🤠 👍 If you see an "E-Biker" 🤜 there, then the steam on the gas tap
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and another beautiful view on the hike from the Hohensyburg to the Ruhr Bridge.
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If you drive during the week, then it's ok. At the weekend, like many other tours, it is just too crowded. The Ruhr Valley Cycle Path is particularly popular
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The most popular lakes in the area are the Harkortsee, Hengsteysee, and the nearby Lake Kemnade. These reservoirs offer a wide range of activities and scenic beauty, making them ideal for both active leisure and relaxed strolls.
Yes, the lakes offer many family-friendly options. The Harkortsee has playgrounds near Wetter and amenities like Klutes Minigolf-Oase. The Hengsteysee features playgrounds and grill areas. Lake Kemnade is particularly well-equipped with leisure facilities including a leisure bath, mini-golf, and extensive playgrounds, making it a dynamic destination for families.
The lakes are hubs for water sports. Harkortsee is popular for sailing, canoeing, windsurfing, and rowing, with several clubs and boat rentals. Hengsteysee also offers canoeing, sailing, and paddle boating. Lake Kemnade provides extensive opportunities for surfing, sailing, paddling, and pedal boating, with boat rentals available at Oveney and Heveney.
Absolutely. The Harkortsee features a well-maintained cycling and walking path along its northern shore, part of the Ruhrtal Radweg. The Hengsteysee has a 6.5-kilometer-long pedestrian and cycling path that encircles the lake. Lake Kemnade boasts an 8 to 10-kilometer circular path, with separate paved routes for pedestrians, inline skaters, and cyclists, including an illuminated inline skating track.
Near the Harkortsee, you can see the impressive Ruhr Viaduct at Harkort Lake, a historical bridge with 12 arches that provides a scenic entrance to the lake. The Harkortsee itself is named after industrial pioneer Friedrich Harkort. Near Lake Kemnade, you can visit the historic Haus Kemnade, a 17th-century moated castle that now houses a museum.
Yes, passenger ships operate on all three main lakes. The MS Harkort offers round trips on Harkortsee between April and October. The passenger ship "Freiherr vom Stein" operates on Hengsteysee from May to mid-October. On Lake Kemnade, the MS Kemnade provides scenic cruises from April to October.
Yes, there are several excellent viewpoints. The Ruhr Viaduct at Harkort Lake offers a picturesque entrance. The View of the Hengsteysee provides expansive vistas of the reservoir, and the Hengstey Bridge also offers great views. For Lake Kemnade, the View of the north shore of Lake Kemnade is noted for its excellent perspective.
There are numerous hiking opportunities around the lakes. For instance, you can find routes like the "Herdecke Promenade on the Ruhr River – Lake Harkort loop from Wetter (Ruhr)" which is a moderate 12.4 km hike. You can explore more options on the dedicated Hiking around Wetter (Ruhr) guide.
Yes, cycling is very popular. The Harkortsee and Hengsteysee paths are part of the Ruhrtalweg, and Lake Kemnade has dedicated cycle paths. Routes like the "Harkortsee Railway Viaduct – Ruhr Viaduct at Harkort Lake loop from Ruhraue Witten-Gedern" offer easy cycling. Discover more routes in the Cycling around Wetter (Ruhr) guide.
Yes, the well-maintained paths around the lakes are excellent for running. For example, the "View of Hengsteysee – Seeschlösschen Café loop from Wetter (Ruhr)" is a challenging 19.9 km run. You can find more running trails in the Running Trails around Wetter (Ruhr) guide.
The lakes are enjoyable year-round, but the period from April to October is particularly vibrant, as passenger ships operate and most outdoor facilities are fully open. Spring and autumn offer pleasant temperatures for walking and cycling, while summer is ideal for water sports and events. Even in winter, the paths can be suitable for quiet strolls.
The lakes generally offer well-maintained paths. For instance, Lake Kemnade has three separate paved paths for pedestrians, inline skaters, and cyclists, which are generally flat and accessible. While specific accessibility details vary, the main circular routes are designed for broad public use.


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