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Germany
North Rhine-Westphalia
Ruhr Region

Kreis Unna

Top 20 Lakes around Kreis Unna

Best lakes around Kreis Unna are found in the eastern Ruhr area, offering diverse recreational opportunities. The region features a landscape that blends urban renewal projects with natural spaces. Visitors can find both artificial lakes designed for public use and natural reservoirs. These areas provide settings for relaxation, walking, and various water activities.

Best lakes around Kreis Unna

  • The most popular lakes is Ternscher Lake, a lake praised for its natural beauty. It features a beach bar and a campsite, making it suitable for longer stays or a refreshing break.
  • Another must-see spot is Forest trail in Beversee Nature Reserve, a trail along a lake created by mountain subsidence. This small, idyllic lake includes a viewing platform with a bench.
  • Visitors also love AquaClimb at Ternsche Lake, a climb that is Germany's largest climbing park on the water. It offers more than 20 different challenges for climbers.
  • Kreis Unna is known for its artificial lakes, natural reservoirs, and nature reserve lakes. These provide a variety of options for urban recreation, nature observation, and water sports.
  • The lakes around Kreis Unna are appreciated by the komoot community, with more than 3700 upvotes and over 1700 photos shared.

Last updated: May 9, 2026

Horstmarer Lake Beach

Highlight • Beach

The Seepark is located on the site of the Lünen State Horticultural Show (“LaGaLü”), which took place here in 1996. It is about 60 hectares in size and partly covers mining areas of the former Prussia colliery and agricultural areas. The core of the park is the nine-hectare Horstmarer See artificially created for the garden show with its bathing beach to the north and east and a quiet and nature reserve to the west and south. In addition, there are wide meadows with perennial gardens as individual islands. The Preußenhalde rises to the south of the site. Together with the Horstmarer Loch, a deep sinkhole that is used for disc golf, it is practically the only relic that points to the original use of the area.

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Ternscher Lake

Highlight • Lake

The Ternscher See was the destination of my tour and I was rewarded by the beautiful place. After a small snack and a cooling cyclist at the beach bar, I was looking forward to the wonderful return trip. That was my most beautiful route so far.

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Lippeaue Nature Reserve (Stockum to Werne)

Highlight • Natural Monument

In this nature reserve, wild animals, especially birds, have a nice retreat. You can always experience good animal observations.

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Datteln-Hamm Canal

Highlight • River

Since 1914, the Datteln-Hamm Canal has connected the eastern Ruhr area with the cities of Hamm and Lünen to the West German canal network. From the branch from the Dortmund-Ems Canal near Datteln, it runs south of the Lippe and ends after 47 km at the height of the Hamm-Uentrop power plant. The originally planned continuation to Lippstadt was no longer pursued after the Second World War. Source: WSV. en

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This is a lake created by a mountain subsidence in the middle of a forest area, which belongs to one of the three nature reserves located in Bergkamen.

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AquaClimb at Ternsche Lake

Highlight • Climb

Since July 21, 2022, bookings can now be made for the "Aqua Climb" climbing park, Germany's largest climbing park on the water. So far, this is only possible via the homepage. Cost for people aged 15 and over: €20. Eight to 15 year olds pay €5 less. On site, the climbers are provided with the equipment and receive instruction. 28 different challenges, from balancing on narrow beams to descending into the water with a 26 m long cable car, everything is offered here.
Climbers must be at least eight years old and able to swim. The course can only be reached by water, then via ladders. It is climbed without a safety rope, because the maximum height of fall into the water is 1.80 m.


Source: Ruhr News

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Gehrenbach Pond

Highlight • Lake

A mini pond that lies quietly in the forest and is used by ducks.

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Hengsen Reservoir

Highlight • Lake

For the most part isolated from the public, the Hengsen Reservoir runs directly at the waterworks between the communities of Fröndenberg, Holzwickede and Schwerte lying along the nature reserve Bahnwald. Its dimensions are about one kilometer long and 250 meters wide. Regularly accessible is the drinking water reservoir Stausee Hengsen only at a very small Uferteilstück, which can be reached from the street Lappenhausen.

Since 1908, the waterworks Hengsen is located in the Ruhr valley. 142 hectares are available as water catchment areas. Pre-purified Ruhr water is infiltrated into the underground via large infiltration basins for groundwater recharge.

In the underground, perforated drainage pipes seize the water, which consists of enriched groundwater, bank filtrate and natural groundwater, and directs it to the pumping station in free fall.

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Cappenberg Lake

Highlight • Lake

The Cappenberger lake was created by the extension of an excavator hole and is located in Lünen in the district of Nordlünen.

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Seseke Park, Kamen

Highlight • Rest Area

Beautifully created park and playground complex directly on the Seseke near downtown Kamen. Good for a break!

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Cycling Collection by

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Tips from the Community

Volker Rump 🌲〽️
November 15, 2025, Gehrenbachteich

The Gehrenbach stream, dammed by a small dam, is home to several duck families.

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Very suitable for a short rest break.

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So, as requested (see above): what makes this HL stand out? First of all, it's just a regular bridge over the canal for pedestrians and cyclists, always well-frequented. It connects several real highlights – Schwansbell Castle and Castle Park, and the lakeside park with its beach and café. You can also simply cycle down to the canal and then continue from there. For people with a specific destination, it's also a great car-free connection from Altlünen to Horstmar or Dortmund-Nord. Hope this is helpful 🖖

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A great campsite in a great location! Friendly staff and delicious food! Well-maintained sanitary facilities and a beautiful lake for swimming.

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Unexpected gem very beautiful

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Sesekepark | Kamen - Processing time: 2013 - 2018 Park concept with three exciting play areas that offer something for every age group! - **Climbing and sliding:** Experience the specially developed climbing game, inspired by a fish trap, and slide with fun! - **Water games:** Enjoy the refreshing play options with water, ideal for hot days! - **Multi-generational band:** A place for all generations - the play and sunbathing lawn invites you to move and relax together. 🚶‍♂️ **Design of the Sesekeplatz:** The southern embankment offers cozy lounge areas with seating edges in the green surroundings. The path down by the Seseke is reserved for pedestrians!

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….climbing on/in the water

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Small pond that seemed almost dried out even after weeks of continuous rain and looked rather sad. I understand the appeal of water in the forest, but that really wasn't great - today! There are a lot of benches around it, all of which were occupied; apparently the pond (on a sign it was called "duck pond") is quite popular after all

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Frequently Asked Questions

Which lakes are best for families around Kreis Unna?

Several lakes in and around Kreis Unna are ideal for families. The Horstmarer See within Seepark Lünen offers a bathing beach and ample space for relaxation. Cappenberger See in Lünen features a public swimming area with a 50-meter sports pool. The Ternscher See is also family-friendly, with a beach bar and campsite. For a unique experience, AquaClimb at Ternsche Lake provides Germany's largest climbing park on the water, suitable for children aged eight and up who can swim.

Are there good options for swimming in the lakes?

Yes, several lakes offer excellent swimming opportunities. Horstmarer See in Seepark Lünen has a designated bathing beach. Cappenberger See features a public swimming area with a 50-meter sports pool. The Ternscher See is also a popular spot for a refreshing dip. Further afield, the Halterner Stausee is known for its swimming areas. Please note that swimming is generally not permitted in the Phoenix-See in Dortmund, though other water activities are available.

What kind of outdoor activities can I do near the lakes?

The lakes around Kreis Unna offer diverse outdoor activities. You can enjoy water sports like sailing and paddle boating at Möhnesee and Halterner Stausee. For climbing, check out AquaClimb at Ternsche Lake. Hiking and cycling are popular around many lakes, including the Möhnesee, Halterner Stausee, and the trails around Cappenberger See. For more detailed routes, you can explore guides like Easy hikes around Kreis Unna, Hiking around Kreis Unna, and Cycling around Kreis Unna.

Are the lakes around Kreis Unna accessible by public transport?

Many lakes and their surrounding areas are accessible by public transport, especially those within Lünen like Horstmarer See (Seepark Lünen) and Cappenberger See. For specific routes and schedules, it's recommended to check local transport providers. Larger lakes like Möhnesee and Halterner Stausee also have good connections, though some may require a combination of train and bus.

Where can I find parking at the lakes?

Parking facilities are generally available at the more popular lakes. For instance, Seepark Lünen (Horstmarer See) and Cappenberger See have dedicated parking areas. The Ternscher See and Halterner Stausee also offer parking for visitors. For smaller, more secluded spots like the Gehrenbach Pond or the Forest trail in Beversee Nature Reserve, parking might be more limited or require a short walk from nearby roads.

What kind of nature and wildlife can I expect to see?

The lakes offer diverse natural experiences. At Horstmarer See, you'll find a quiet nature reserve on its western and southern sides. The Forest trail in Beversee Nature Reserve is home to a small, idyllic lake created by mountain subsidence, offering a viewing platform. The Gehrenbach Pond is a tranquil spot in the forest, known for its duck families. The Lippeaue Nature Reserve near Stockum to Werne is a retreat for wild animals, especially birds. The southern half of Möhnesee is surrounded by the Arnsberg Forest Nature Park, providing extensive opportunities for nature observation.

Are there cafes or restaurants near the lakes?

Yes, many lakes provide amenities for visitors. The Ternscher See features a beach bar. Along the shores of Möhnesee, you'll find numerous cafes and restaurants. The urban Phoenix-See in Dortmund boasts a vibrant promenade with shops, restaurants, and a marina. For other lakes, it's common to find cafes or pubs in nearby towns or within larger park areas like Seepark Lünen.

What makes the Phoenix-See unique among the lakes?

The Phoenix-See in Dortmund is a striking example of urban regeneration. Created on the site of a former steelworks, it represents the Ruhr area's structural change. It's a vibrant local recreation area with promenades, residential areas, shops, restaurants, and a marina. While swimming is not permitted, visitors can enjoy paddle boating, kayaking, or simply strolling and cycling along its scenic paths, offering a unique blend of nature and modern urban living just 12.1 km from Unna.

Can I visit the Stausee Hengsen?

The Stausee Hengsen is primarily a drinking water reservoir, and much of it is isolated from the public. However, a small section of its shore is accessible, offering a serene environment along the nature reserve "Bahnwald" for peaceful observation. It's not a typical recreational lake for swimming or extensive water sports.

What is the significance of Möhnesee?

The Möhnesee, often called the "Westfälisches Meer" (Westphalian Sea), is one of Germany's oldest dams, constructed between 1908 and 1913. Its impressive 650-meter-long and 30-meter-high dam wall is a significant landmark. Located in the Arnsberger Wald Nature Park, it's a major hub for water sports, hiking, and cycling, with extensive opportunities for walks and hikes in the surrounding forest.

Are dogs allowed at the lakes in Kreis Unna?

Dog policies vary by specific lake and designated areas. While many natural areas and trails around lakes like Horstmarer See (Seepark Lünen) and Cappenberger See are dog-friendly, often requiring leashes, certain bathing beaches or nature reserve sections might have restrictions. It's always best to check local signage or specific lake regulations before visiting with your dog.

What are some easy walks around the lakes?

For easy walks, the trails around Horstmarer See in Seepark Lünen are generally flat and well-maintained. The path around Cappenberger See is also suitable for a leisurely stroll. The Gehrenbach Pond offers a pleasant, shorter walk through the forest. For more options, you can explore the Easy hikes around Kreis Unna guide, which includes routes like the "Gehrenbach Pond – Gut Ostberge loop".

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Cycling around Kreis Unna

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Find the best lakes around Kreis Unna per region:

SchwerteFröndenberg/RuhrSelmWerneBergkamenBönenLünenTernscher LakeStausee HengsenKamenHolzwickede

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Still not found your perfect lake around Kreis Unna? Check out the guides of these regions to see even more beautiful places.

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Things to Do around Kamen

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