Lakes around Alsbach-Hähnlein, a municipality in southern Hesse, Germany, are characterized by their ecological significance. The region features several notable lakes and wetland areas, primarily within the "Altneckarlachen von Alsbach, Hähnlein und Bickenbach" nature reserve. These areas are remnants of the former Neckar River course, offering diverse flora and fauna. The landscape provides opportunities for nature-oriented activities such as hiking and cycling.
Last updated: May 20, 2026
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The Große Lache lake in the Kühkopf-Knoblochsaue nature reserve is a true highlight for nature lovers. Located in the heart of Hesse's largest nature reserve, it is especially popular with cyclists and hikers. The landscape is characterized by riparian forests, meadows, and old branches of the Rhine – a paradise for birds, wildlife, and anyone seeking tranquility.
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The Erlensee was originally a gravel pit. The gravel and sand extracted from the lake was mainly used for the construction of the motorways. After the end of gravel mining, the Erlensee was renatured. Today the lake is used for fish farming and as a leisure area. The Erlensee was named after the alders that grow on its shore.
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The Erlensee is a very beautiful, old quarry lake with a swimming area and a kiosk. The forest adjacent to the lake with its extensive meadows is ideal for hiking. The Erlensee is a groundwater lake with excellent water quality. Source: https://www.seen.de/erlensee-bickenbach/
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The region is rich in ecologically significant wetland areas, particularly within the "Altneckarlachen von Alsbach, Hähnlein und Bickenbach" nature reserve. These include oxbow lakes (Lachen) that are remnants of the Neckar River, low moor soils, reed beds, and diverse wetland flora and fauna. You can also find renatured gravel pits like Erlensee and idyllic forest lakes such as Niederwald Lake and Fairy Pond.
Yes, the "Altneckarlachen von Alsbach, Hähnlein und Bickenbach" nature reserve is designated as an EU bird protection area and is an excellent spot for birdwatching. The Landbachaue Nature Reserve, part of this area, is particularly known for observing water birds and nutrias, with white storks breeding in the trees during summer. The Fasanenlache within the reserve also hosts bird sound walks.
Several lakes are family-friendly. The Fasanenlache, part of the Altneckarlachen nature reserve, has a nature education center offering activities for children. Niederwald Lake features small 'wooden tips' in the adjacent wood that are a hit with younger children. The Swan Pond at Fürstenlager Park offers a picturesque setting for leisurely family strolls.
Swimming is permitted at your own risk at Erlensee near Bickenbach, which is a popular spot for locals seeking relaxation and sunbathing in summer. However, bathing is prohibited at Niederwald Lake, despite its inviting appearance.
The Altneckarlachen nature reserve is ideal for hiking, cycling, and quiet reflection, with marked routes available. You can also find various routes for gravel biking, mountain biking, and running in the wider region. For example, explore routes like the 'View of the Rhine – Rhine Cycle Path at Eicher Lake loop' for gravel biking or 'Auerbach Castle loop' for mountain biking. You can find more details on these activities in the Gravel biking around Alsbach-Hähnlein, MTB Trails around Alsbach-Hähnlein, and Running Trails around Alsbach-Hähnlein guides.
Yes, the Erlensee Beer Garden is a kiosk by the Erlensee that is open all year round, offering a place to take a break. The area around the lakes, especially in nearby towns, also provides various dining options.
The Altneckarlachen nature reserve is particularly interesting during spring and summer when migratory birds return and storks breed. The diverse flora is also vibrant during these seasons. However, the Swan Pond at Fürstenlager Park is noted as being worth a visit at any time of the year for its beauty.
While the nature reserves encourage visitors to stay on designated paths to protect the sensitive ecosystem, specific dog policies can vary. It's generally recommended to keep dogs on a leash in nature protection areas to avoid disturbing wildlife. Always look for local signage regarding dog rules.
The Altneckarlachen nature reserve is unique because it preserves several 'Lachen' (oxbow lakes) that are remnants of the former Neckar River course. This creates a distinctive landscape of low moor soils and wetland areas, supporting rare plant communities and a diverse array of wetland flora and fauna, including its designation as an EU bird protection area.
While Erlensee is a popular recreational area, activities like boating and stand-up paddling are generally not allowed due to safety concerns. It is primarily used for fishing, swimming (at your own risk), and relaxation along its circular path.
Many areas, especially within the Altneckarlachen nature reserve, offer marked routes for hiking and cycling. However, some areas, particularly around the Fasanenlache, can be swampy and damp, so waterproof footwear is recommended for comfortable exploration. Niederwald Lake is noted as being easily accessible by bike.
While the lakes themselves are primarily natural features, the nearby Swan Pond at Fürstenlager Park is located within a historic rural summer residence. Fürstenlager State Park in Bensheim-Auerbach offers an idyllic setting of historic buildings framed by forests, meadows, and vineyards, providing a cultural experience alongside nature.


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