Natural monuments around Oppenau offer a diverse landscape within the Black Forest region. This area is characterized by its valleys, dense forests, and unique geological formations. The guide highlights 20 distinct natural monuments, providing opportunities to explore the region's natural features. Oppenau serves as a base for discovering these natural attractions.
Last updated: April 28, 2026
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The lake was created around 10,000 years ago when a glacier melted, but disappeared again 3,000 years ago. In 1980/81 a natural dam was created here again. This has created a beautiful leisure and nature reserve where you can enjoy taking a longer break. Nice seating on the drainage side and a large barbecue area by the waterfall.
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Definitely worth it, small waterfalls in a breathtaking landscape
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A narrow path winds through the wild and romantic gorge. The crossing takes place via stairs, footbridges and bridges with constantly changing perspectives of the waterfalls.
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This ridge path is a beautiful rocky getaway. A bit of rock climbing and sure footing allow for great views and an alpine experience. To be taken in dry weather and with caution. Not suitable for people who have difficulty climbing or are dizzy, but there is a safe alternative below.
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The Sankenbachsee is a former karst lake southwest of Baiersbronn. It silted up around 3,000 years ago and could be artificially dammed up again because it lies below the Sankenbach waterfalls and is flowed through by the Sankenbach. In the 1980s, a low barrage was built at the outflow of the Sankenbach to protect the lake from silting up. Source: Wikipedia
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The Gaishölle is a special place. The Brandbach cascades down into the valley. The best way to explore this wildly romantic gorge near Sasbachwalden with huge rocks and boulders is on a hike on our premium trail. With a height difference of around 200 meters and 13! Bridges go up to the Bischenberg/Hörchenberg district. Source: https://www.sasbachwalden.de/Media/Attractions/Gaishoell-Wasserfaelle
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The Sankenbach waterfall, which plunges 40 meters through a Karwand step and is triggered by manually opening the wooden sluice, offers an impressive natural spectacle. Here visitors can intervene in nature themselves and let the waterfall swell. You open the slide with the wooden lever. The dammed water of the water basin then rushes into the valley.
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Footbridge to protect the raised bog. Good to walk and interesting vegetation
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Yes, several natural monuments are ideal for families. The Boardwalk Through the Hornisgrinde Raised Bog offers an exciting wooden plank path with educational information and an observation tower. Lake Sankenbach is another great option, featuring seating areas, a barbecue spot, and shelters. Additionally, Mummelsee is family-friendly with an art trail and facilities.
The region around Oppenau is rich in diverse natural features. You can explore challenging ridges like the Karlsruhe Ridge (Karlsruher Grat), serene lakes such as Lake Sankenbach and Mummelsee, and impressive waterfalls like the Gaishöll Waterfalls. There are also unique geological formations like the raised bog at Hornisgrinde.
Yes, Mummelsee is noted as being wheelchair accessible, allowing visitors to enjoy the lake and its surroundings.
For those seeking a challenge, the Karlsruhe Ridge (Karlsruher Grat) offers a demanding trail with climbing sections and extensive views, requiring sure-footedness and appropriate footwear. The Gaishöll Waterfalls also present a challenging yet rewarding experience with a narrow path winding through a wild gorge.
Beyond exploring the natural monuments themselves, you can enjoy various outdoor activities. There are numerous hiking opportunities, including easy hikes like the All Saints' Waterfalls trail. Cycling is also popular, with options for road cycling and general cycling routes around Oppenau.
Visitors frequently praise the diverse landscapes, from challenging ridge trails with stunning views to tranquil lakes and impressive waterfalls. The Karlsruhe Ridge is often highlighted for its fun climbing sections and vistas, while the Boardwalk Through the Hornisgrinde Raised Bog is appreciated for its unique educational experience. The barbecue facilities and serene setting at Lake Sankenbach are also popular.
Yes, Mummelsee is steeped in local folklore. Old legends tell of mermaids, dwarfs, and a king living in the lake, with mermaids said to visit nearby villages on full moon nights.
For challenging trails like the Karlsruhe Ridge, sure-footedness and good footwear are essential. For general exploration, comfortable hiking shoes, water, and appropriate clothing for the weather are recommended. If visiting Lake Sankenbach in warm weather, a towel might be useful for a refreshing dip.
The natural monuments can be enjoyed throughout the year. Summer offers pleasant conditions for cooling off near waterfalls like Gaishöll Waterfalls. Spring and autumn provide vibrant colors and comfortable hiking temperatures. For popular spots like the Karlsruhe Ridge, visiting during the week or early in the morning is advised to avoid crowds.
Yes, there are several easy hiking trails in the vicinity. Examples include the All Saints' Waterfalls in the Black Forest, the Sagenrundweg (legend trail) to the Klosterruine Allerheiligen, and the "Rosi Rotkehlchen" children's trail in Oppenau.
Yes, Mummelsee has facilities including a restaurant. Additionally, Lake Sankenbach offers a well-equipped barbecue area with a drinking water fountain and shelters, perfect for a picnic.


Extend your search for the best caves by checking out these guides of the top ones around Oppenau: