Lakes around Salzweg are integrated into the natural landscape of Bavaria, Germany. The municipality is primarily associated with the Ilz-Stausee Oberilzmühle, a reservoir created for hydroelectric power generation. This area offers opportunities for outdoor recreation, including swimming and hiking along the Ilz River. The region's lakes provide diverse natural settings for visitors.
Last updated: June 27, 2026
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The former quarry is also vividly described at https://www.sehenswerter-bayerischer-wald.de/steinbruch-buechlberg-wandern-see.html
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The former Büchlberg granite quarry with lake is an important geosite. Fine- to medium-grained two-mica granite (equivalent to Hauzenberger Granite I) was mined from 1880 until after Carl Kerber's death in 1961 in the former Kerberbruch quarry on the Büchlberg. The rock, which is grayish-white when fresh, has a slightly yellowish tinge. The outcrop walls show signs of weathering to varying depths. Büchlberg granite was used as natural stone in buildings such as Nuremberg Central Station, the spiral staircase of the Germanisches Museum in Nuremberg, and the Walhalla in Regensburg. The stone was also traded internationally, for example in Belgium, France, the Netherlands, and the USA. The granite quarry, surrounded on all sides by the remaining walls and with a lake at its lowest level, is a natural monument and is located in a landscape conservation area. It now serves as a recreational area. Bavarian State Office for the Environment (LfU). https://www.umweltatlas.bayern.de/standortauskunft/rest/reporting/sb_geotope/generate?additionallayerfieldvalue=275A032
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Unfortunately, swimming is forbidden here 😔 but you can enjoy the peace and quiet here 😍☺️
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At the western end of the dam there is a beautiful lawn where you can swim. If you cross the dam and follow the narrow hiking path on the east side after the turnstile for about 1km, you will reach a small meadow. There you can also sunbathe naked in peace. When I visited in August 2024 there were only a few visitors and it was wonderfully quiet and relaxed.
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Great circular route with beautiful passages.
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It's great to walk the path here and have water on both sides. Interestingly, the fish ponds are located slightly higher than the Ilz.
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The most popular lake is the Oberilzmühle Reservoir, known for its clear waters and recreational opportunities. Other highly appreciated spots include Freudensee, which offers a scenic circular route, and Kerber Quarry Lake (Büchlberg Quarry Lake), recognized as an important geosite and natural monument.
Yes, the area around the Oberilzmühle Reservoir is a great starting point for numerous hiking tours along the Ilz River. You can find several routes, including easy loops like the "Ilzstausee Dam – On the shore of the Ilz Reservoir loop" or the "Ilzstausee Dam – Ilz Footbridge and Triftsperre Tunnel loop." The Freudensee also features a very popular circular route. For more options, explore the hiking guide for Salzweg.
Yes, the Oberilzmühle Reservoir is designated as a natural bathing area with a well-maintained sunbathing lawn and swimming jetty. It's known for its clear, high-quality water, with summer temperatures averaging around 17 °C. While bathing is officially forbidden at Kerber Quarry Lake, it is a popular spot for swimming among locals.
Absolutely. Lakes like the Oberilzmühle Reservoir and Freudensee are considered family-friendly, offering recreational areas, easy trails, and opportunities for swimming and picnicking. The Path Between the Ilz River and Fish Ponds also provides a pleasant walk suitable for families.
The region offers diverse natural settings. At the Oberilzmühle Reservoir, you'll find a 5 km long lake formed by the Ilz River, surrounded by scenic views. Kerber Quarry Lake is a unique geosite formed in a former granite quarry, now a natural monument. Freudensee is appreciated for its forest surroundings and scenic beauty throughout the year.
Yes, the Oberilzmühle Reservoir is known to be dog-friendly, making it a great spot for walks with your canine companion. Always ensure dogs are kept on a leash where required and respect local regulations regarding pets in bathing areas.
Yes, near the Oberilzmühle Reservoir, you can find the Stausee-Stüberl, a restaurant with a beer garden offering Bavarian meals and scenic views. Another pub, Zur Triftsperre, is accessible via a 2.5 km walk along the Ilz River. Some recreational areas, like the one near the Path Between the Ilz River and Fish Ponds, may also have kiosks.
The lakes are enjoyable year-round. Summer is ideal for swimming and sunbathing, especially at the Oberilzmühle Reservoir. The Freudensee is particularly appreciated for its scenic beauty in all seasons, making it suitable for walks in spring, autumn, and even winter.
Yes, the region offers various cycling opportunities. You can find routes like the "Ilz Valley – Ilz Railway Bridge, Kalteneck loop" for gravel biking, or the "Passau Old Town – St. Stephen's Cathedral, Passau loop" for general cycling, which often pass near the Ilz River area. Explore the gravel biking guide or the cycling guide for Salzweg for detailed routes.
The Ilz-Stausee Oberilzmühle, also known as Haslach-Speicher, is a reservoir created between 1951 and 1955 by damming the Ilz River. Its primary purpose is to generate hydroelectric power for Stadtwerke Passau, producing approximately 13 million kilowatt-hours of electricity annually. Beyond its functional role, it serves as a significant recreational area.
Yes, the Ilz Dam and Fish Ladder is a notable man-made monument and historical site associated with the Ilz-Stausee Oberilzmühle. It offers impressive views and allows visitors to cross the Ilz River. The Kerber Quarry Lake itself is a former granite quarry, representing a historical industrial site now recognized as a natural monument.


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