Best attractions and places to see in Hochwasserrückhaltebecken Alfhausen-Rieste include the Alfsee, a 2.2 km² artificial lake that functions as a flood retention basin for the Hase river. This area, also known as the Alfsee, is a significant local recreation zone in the Osnabrück district. It features extensive natural landscapes, including the Reservebecken, which is a crucial habitat for diverse waterfowl. The region offers opportunities for walking and cycling along its dikes and designated trails.
Last updated: May 25, 2026
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The Alfsee was artificially created to regulate the water level of the Hase River and to facilitate agriculture in the Hase floodplains. This recreational lake is dammed by this dam. From here, you have a fantastic view of the large reservoir. Walking across the dam is definitely worth it.
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A popular refuge for waterfowl of all kinds. Since the area is also quite wooded, it's not possible to see deep into the reserve basin from every corner. Depending on the wildlife activity, the path along the dike can be quite lengthy.
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Alfsee, located southeast of Alfhausen, a few hundred meters east of the B 68, can be reached from this federal highway and from the Neuenkirchen-Vörden junction of the A 1, which runs just to the east. Rieste train station, served hourly from Bremen (via Delmenhorst) and Osnabrück, is only about 1,800 meters from Alfsee.
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The 330 m long overflow sill, the inlet of the Alfsee, was built in 1974 with a 10 hectare settling basin. This is where sand and alluvial particles that would worsen the water quality of the lake are supposed to settle. The outlet structure was also built in 1974.
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The Hase flows through small gates into the Alfsee.
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The water of the Hase flows through the Alfsee.
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It's best to drive on top of the dike instead of on the small pavement below.
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Southern tip of Alfsee. It's easy to walk around in the morning.
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The region is centered around the Alfsee, a 2.2 km² artificial lake that serves as a flood retention basin. Adjacent to it is the Reservebecken, a significant nature reserve and EU bird sanctuary, which is a crucial habitat for various waterfowl and even white-tailed eagles. You can also enjoy the scenic North shore of the Alfsee for peaceful walks.
Yes, the dikes surrounding both the main Alfsee basin and the Reservebecken offer extensive opportunities for walking and cycling. There are designated routes like the "TERRA.track: Alfsee" around the reserve basin and the themed path "TERRA.natura Tipp 9". For easy hikes, you can find several options, including a 7.5 km loop from Rieste around the North shore of the Alfsee and the Viewpoint Reserve Basin. You can explore more options on the Easy hikes in Hochwasserrückhaltebecken Alfhausen-Rieste guide.
The dikes around the Alfsee and Reservebecken are perfect for cycling. Regional cycling routes also pass through the nature reserve. For more structured rides, you can check out the Road Cycling Routes in Hochwasserrückhaltebecken Alfhausen-Rieste guide or the MTB Trails in Hochwasserrückhaltebecken Alfhausen-Rieste guide for mountain biking options.
Absolutely! The Alfsee Ferien- und Erholungspark (Alfsee Holiday and Recreation Park) offers a wide array of leisure activities suitable for families. This includes campsites, a holiday home park, Dubbelausee with a beach, a water ski facility, a go-kart track, and an indoor play paradise. The Alfsee itself is also considered family-friendly for walks and enjoying nature.
The Reservebecken is a prime location for wildlife observation, particularly for birds. It's a crucial habitat and resting place for a variety of waterfowl, including gray geese, mute swans, tufted ducks, and various grebes, and hosts a cormorant colony. Since 2019, white-tailed eagles have also made the area their home. There is an observation hut located in the southeast of the round path around the Reservebecken specifically for birdwatching.
The Alfsee Overflow Weir, built in 1974, is a notable man-made structure that is traversable. It offers excellent views over the lake and the distinct sound of rushing water, making it a unique point of interest for visitors.
The Alfsee South Dam provides simply beautiful views over the water in both directions. It's particularly renowned for its stunning sunsets, making it a popular spot for an evening stroll.
Yes, within the Alfsee Holiday and Recreation Park, you'll find the Naturschutz- und Bildungszentrum Alfsee (Alfsee Nature Conservation and Education Center). It features an exhibition and hosts events and seminars focused on the region's natural environment. Additionally, the "Storchenpfad Alfsee – Der Mensch als Landschaftsgestalter" (Stork Path Alfsee – Man as Landscape Designer) is an educational trail that offers insights into how humans have shaped the landscape.
The Alfsee area is enjoyable year-round. While it can be busy during peak summer, it is often noted that it's not overcrowded, and outside the main season, it offers wonderful quiet for long walks. Spring is also highlighted as a beautiful time to visit. Sunsets from the Alfsee South Dam are particularly notable.
While the main Alfsee is a flood retention basin, the Alfsee Ferien- und Erholungspark includes the Dubbelausee, which has a beach and a water ski facility, offering opportunities for swimming and other water sports.
Visitors particularly appreciate the peaceful surroundings, especially outside the main season, making it ideal for long walks and relaxation. The beautiful views from the Alfsee South Dam, especially at sunset, are highly praised. The easy, flat paths around the Alfsee are also popular for short, undemanding hikes.
Outside of the main season, the entire area around the Alfsee offers a wonderful quiet, with almost no traffic noise. The dikes provide peaceful surroundings. For birdwatching enthusiasts, the observation hut at the Reservebecken offers a serene spot to connect with nature away from more bustling areas.


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