4.5
(6244)
23,451
hikers
16
hikes
Hiking in Heiliges Meer-Heupen explores a 260-hectare nature reserve in the Tecklenburger Land region of North Rhine-Westphalia, Germany. The area is characterized by unique geological formations, including sinkhole lakes such as the Großes Heiliges Meer, the largest natural still water in North Rhine-Westphalia. The landscape features diverse ecosystems, including nutrient-poor heath ponds, extensive reed beds, heathlands, dry grasslands, fens, and alder carr forests.
Last updated: September 29, 2026
4.6
(385)
1,249
hikers
9.21km
02:20
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(4)
11
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.0
(4)
10
hikers
7.71km
01:58
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(29)
124
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
8
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The heathlands near Hopsten are a characteristic landscape of northern Westphalia. Extensive agricultural use, heathland management, and natural soil types have created open, sunlit areas with characteristic heather species. In spring and autumn, the heathlands display their most vibrant colors: purple heather, green reedbeds, and flowering dwarf shrubs dominate the scene. Historically, heathlands were often cultivated through drainage, grazing, and controlled burning, resulting in the development of specific plant communities. Today, they are protected as nature reserves, providing habitats for rare insects, bird species, and plants. Hikers enjoy quiet paths, viewpoints, and the expansive vistas across the barren, open landscape, which conveys a sense of space and tranquility. Autumn and winter hikes are particularly appealing when the light becomes shallower and the heath's structure is revealed through the changing sfumato of the seasons. Local nature conservation initiatives and associations contribute to the upkeep of the areas by carrying out mowing measures, planting projects and information events.
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There is a really beautiful heathland area here with sandy areas, heather, isolated pines and also a sinkhole lake.
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To the east of the Great Holy Sea is the Small Holy Sea, which is privately owned but also protected. To the southwest are the sinkhole lake and the Heideweiher pond. The sinkhole lake was formed on April 14, 1913, during the last major sinkhole in the protected area.
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A break hut with TV broadcast – I’ve never seen anything like that before.
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The Great Holy Sea is the largest natural inland lake in North Rhine-Westphalia, located in the Tecklenburger Land region. It gives its name to the Holy Sea – Heupen nature reserve, in which it is located. It was formed several hundred years ago by a sinkhole; a tragic legend explains its origin in an immoral monastery on this site.
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On a normal weekday, this parking space was perfectly adequate. A nice information board for the "first steps"
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Heiliges Meer-Heupen is renowned for its unique geological formations, particularly its sinkhole lakes (Erdfallseen), including the Great Holy Lake, the largest natural still water in North Rhine-Westphalia. The reserve also features diverse ecosystems like heathlands, reed beds, fens, and alder carr forests, supporting rich biodiversity.
There are over 15 hiking trails in Heiliges Meer-Heupen, offering a range of experiences. Most routes are classified as easy, with a few moderate options for those seeking a bit more challenge.
Yes, many trails are circular and easy. For example, the Great Holy Lake – Sinkhole Lake loop from Heiliges Meer-Heupen is an easy 7.7 km path that circles the prominent lakes, perfect for a relaxed outing.
Hikers can explore a variety of natural features, including the distinctive Great Holy Lake and other Sinkhole Lakes. You'll also encounter nutrient-poor heath ponds, extensive reed beds, and areas of heathland and alder carr forests.
Yes, the LWL Museum of Natural History – Heiliges Meer Education and Research Center is located within the reserve. It offers a small exhibition, courses, and guided excursions, highlighting the area's ecological significance. There's also a rest shelter near the station.
The trails in Heiliges Meer-Heupen are highly rated by the komoot community, with an average score of 4.7 stars from over 460 reviews. Hikers often praise the diverse landscapes, the tranquility, and the well-maintained paths around the unique lakes and heathlands.
Heiliges Meer-Heupen is a nature reserve, so specific rules apply to protect its sensitive ecosystems and wildlife. Dogs are generally allowed on designated trails but must be kept on a leash at all times. Please respect local signage regarding pet regulations.
While most routes are easy, there are moderate options. The Heiliges Meer – Teutoschleifen is a moderate 9.2 km trail that takes about 2 hours 20 minutes, offering varied terrain and a good workout. The area is also integrated into wider hiking networks like the Töddenweg and Marskramerpad I, part of the European long-distance path E11, for those seeking extended adventures.
Heiliges Meer-Heupen offers beautiful hiking experiences throughout the year. Spring brings blooming flora, summer allows for lush green views, and autumn showcases vibrant colors. The unique geological features and diverse habitats are accessible in most seasons, though specific wildlife viewing opportunities may vary.
Absolutely. Many of the easy, circular routes are ideal for families. The relatively flat terrain and well-defined paths make it suitable for children. The Rest shelter at Heiliges Meer – Great Holy Lake loop from Heiliges Meer-Heupen, for instance, is a 6.4 km easy trail that passes by the Great Holy Lake and a convenient rest stop.
Yes, there are designated parking areas around the Heiliges Meer-Heupen nature reserve, providing convenient access to the various trailheads. Specific parking information can often be found on local signage or detailed route descriptions.
The diverse habitats support a rich array of wildlife. You might spot rare flora like water bladderwort and sundew in the heath ponds. The reserve is also a vital habitat for numerous bird species, including meadow birds like the curlew and lapwing, and breeding birds such as the lesser spotted woodpecker and golden oriole in the hedges and carr forests.


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