4.5
(2728)
9,461
hikers
303
hikes
Hiking in Naturpark Diemelsee offers diverse terrain across the Rothaargebirge mountain range, straddling Hesse and North Rhine-Westphalia. The region is characterized by the central Diemelsee lake, surrounded by dense forests covering approximately half of the park. Hikers encounter varied landscapes including majestic mountains, wide valleys, rare high heathlands, and numerous clear streams. This natural park provides a network of trails with significant elevation changes and expansive views.
Last updated: July 10, 2026
4.8
(848)
2,937
hikers
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.6
(40)
161
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.4
(31)
136
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.9
(43)
153
hikers
26.5km
07:31
500m
500m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.8
(38)
109
hikers
5.92km
01:41
130m
130m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Very beautiful, partly very natural.
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A beautiful site with information about mining and geology in the Diemel Valley. Ideal for a break while hiking or cycling on the Diemel Cycle Path. A visit is especially worthwhile during the Giershagen Charcoal Burners' Week.
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Great adventurous hiking trail
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At the upper reaches of the Diemel River, in Helminghausen, we encounter the massive dam of the Diemel Dam. A 35-meter drop is used here to operate two Francis turbines. The power plant below this dam was built between 1920 and 1922. Since 2000, it has been operated by E.ON Energie AG, formerly Preußen-Elektra in Hanover. Following restructuring and spin-off measures at E.ON in 2016, Uniper SE operates the power plant, which reports directly to the Edersee utility management. The substation is housed in the four-story power plant building. Here, the three-phase current generated at a voltage of 8 kV was transformed in various ways and fed into the Hessian 60 kV line to Hemfurt am Edersee and a 24 kV line to Heringhausen (Waldeck), as well as into the 60 kV line of the Büren-Brilon Electricity Association. From here, electricity was also supplied to the local grids of Helminghausen, Padberg, and Messinghausen. Two transformers in the basement provided the conversion for the Brilon district. The oil switches were located on the ground floor, the collector slides on the first floor, and the surge protection on the second. This is where the cables entered and exited. This explains why there is no transformer house in Helminghausen, as the transformer was housed directly in the power plant's substation. The municipality of Helminghausen only had to erect 25 wooden poles, each 10 meters long and with a 20-cm diameter, for the power grid. The front section of the power plant, with its striking three-axis window front, houses two three-phase generators from Siemens-Schuckert. Today, thanks to technical improvements, they each have an output of 500 kW (760 hp). They went into operation in 1924. Behind the building are the bottom outlet tunnels of the dam, from which the inlet pipe leads, supplying 4,500 liters of water to the turbines every second. The power plant has a capacity of 1.2 MW. The substation, the first in the Hochsauerland region, was commissioned as early as August 1922. Source: https://helminghausen.net/kraftwerk/
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The Stormbruch Bridge over the Diemelsee connects Heringhausen with the Stormbruch district and the Seebrücke campsite/beach located directly behind the bridge.
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Heringhausen is a district of the municipality of Diemelsee and a recognized climatic health resort.
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Naturpark Diemelsee offers an extensive network of trails, with nearly 300 hiking routes available on komoot. These range from easy strolls to challenging ascents, catering to various fitness levels.
The terrain in Naturpark Diemelsee is quite diverse, reflecting its location within the Rothaargebirge mountain range. You'll encounter majestic mountains, wide valleys, dense forests (both deciduous and spruce), rare high heathlands, and expansive meadows. Many trails feature significant elevation changes, offering varied and engaging experiences.
Yes, Naturpark Diemelsee has numerous easy and family-friendly trails. Out of nearly 300 routes, 163 are classified as easy. An example of an easy route is the Charcoal Kiln Site at Heimberg – Diemel River loop from Eselstall / Mittelberg, which is 6.9 km long and takes about 1 hour 50 minutes, leading through varied forest and river landscapes.
Generally, dogs are welcome on hiking trails in Naturpark Diemelsee. However, it's always advisable to keep them on a leash, especially in nature protection areas or near wildlife, to protect the local flora and fauna. Please be mindful of other hikers and local regulations.
The park is rich in natural beauty and landmarks. The central feature is the Diemelsee itself, with the impressive Diemelsee Dam. You can also explore unique high heathlands, dense forests, and clear streams. For geological insights, there are visitor mines and several caves, such as the Draken Caves, Obermarsberg.
Yes, many routes in Naturpark Diemelsee are designed as circular walks, allowing you to start and end at the same point. The View of Lake Diemelsee – Diemelsee Nature Reserve loop from Naturpark Diemelsee is an easy 7.1 km circular trail offering beautiful lake views. The renowned Diemelsteig is also a 63 km quality hiking trail that offers natural paths with breathtaking lake views and fantastic panoramas of the Diemelsee.
Naturpark Diemelsee is beautiful year-round, but the best time for hiking is typically from spring to autumn. During these seasons, the weather is milder, and the diverse landscapes, from vibrant deciduous forests to colorful flower meadows, are at their most appealing. Winter offers opportunities for winter hiking, especially around Willingen, but some trails may be challenging due to snow and ice.
Designated parking areas are available at many trailheads and popular starting points throughout Naturpark Diemelsee. Specific parking information is often provided on individual route descriptions on komoot, or you can check local visitor information centers for detailed maps and parking facilities.
While some areas of Naturpark Diemelsee are accessible by public transport, it's generally more convenient to reach many trailheads by car. Public transport options might be limited, especially for more remote starting points. It's recommended to check local bus schedules in advance if you plan to rely on public transport.
Absolutely. Naturpark Diemelsee offers 29 routes classified as difficult on komoot, featuring significant elevation changes and longer distances. The Diemelsee at the Itter inflow – Heringhausen on Lake Diemel loop from Mühlenberg is a challenging 17.8 km path with extensive views. The Uplandsteig, a 66 km quality trail, is also known for its demanding nature and over 40 stunning viewpoints.
The hiking experience in Naturpark Diemelsee is highly rated by the komoot community, with an average score of 4.6 stars from over 2,400 reviews. Hikers often praise the stunning lake views, the tranquility of the dense forests, and the well-maintained, diverse trails that cater to all levels.
Yes, for those seeking a more immersive experience, the Trekkingpark Sauerland offers 9 bookable trekking camps. These camps are strategically located along the Diemelsteig and Uplandsteig, providing unique opportunities for multi-day hikes and overnight stays directly in nature.
Beyond hiking, Naturpark Diemelsee is a true outdoor paradise. The Diemelsee is perfect for water sports like swimming, surfing, sailing, diving, and fishing. The region around Willingen is a renowned mountain biking destination. In winter, visitors can enjoy alpine skiing, cross-country skiing, and tobogganing.


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