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Germany
Baden-Württemberg
Freiburg District
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Tengen

Top 20 Natural Monuments around Tengen

Best natural monuments around Tengen are found within the Hegau region, a distinctive extinct volcanic landscape in Germany. Tengen itself features the Mühlbachschlucht, a picturesque gorge with waterfalls and historical mill remnants. The broader area is characterized by conical hills, remnants of ancient volcanoes, many topped with castle ruins. This geological setting provides a diverse environment for outdoor exploration.

Best natural monuments around Tengen

  • The most popular natural monuments is Rhine Falls, a waterfall that is 150 meters wide and 23 meters high, making it the largest waterfall in Europe. This impressive natural spectacle is particularly dramatic after snowmelt, with up to 600,000 liters of water per second cascading down.
  • Another must-see spot is Hohenhewen Castle, a castle and viewpoint. From its viewing platform, visitors can see the Hegau mountains, Lake Constance, and the Swabian Alb.
  • Visitors also love Höwenegg Crater Lake, a lake also called the "Blue Eye" of the Hegau. This crater lake formed in a former mining area within a volcanic crater, offering an impressive geological site.
  • Tengen is known for waterfalls, volcanic cones, and crater lakes. These offer a variety of natural formations to explore.
  • The natural monuments around Tengen are appreciated by the komoot community, with over 2700 upvotes and more than 4200 photos shared.

Last updated: July 23, 2026

Rhine Falls

Highlight • Waterfall

The Rhine Falls are an impressive natural spectacle, especially after the snowmelt. At 150 meters wide and 23 meters high, they are the largest waterfalls in Europe. In summer, up to 600,000 liters of water per second cascade down the falls. They are estimated to be approximately 15,000 years old.

Access to the northern bank is free. On the southern bank, admission costs 5 Swiss francs (including entry to Laufen Castle and access to the viewing platforms).

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Hohenhewen Castle

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A hike to the Hohenhewen castle ruins is worthwhile just for the wonderful view. A viewing platform was built onto the rest of the keep, from which you can see the Hegau mountains, Lake Constance and the Swabian Alb to the north. In good weather and with a clear view, you can also see the Alps and the Black Forest.

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Höwenegg Crater Lake

Highlight • Lake

Also called the "Blue Eye" of the Hegau.
Unlike other volcanic relics and maars in the Swabian Alb, the "Höwenegg" is part of the Hegau volcanism. The main crater is the largest of a total of six eruption sites from which basalt and basalt tuff were mined. The lake visible today was formed in the former mining area.
The eruption occurred 10 million years ago. At that time, a crater lake formed, which was visited by numerous animals. Fossil finds of 13 prehistoric horses, antelopes, and rhinos attest to the subtropical climate at that time. The fossils were excellently preserved in the lake sediment.

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Hohenkrähen Castle Ruins

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On a more than 600 meters high and steeply sloping volcanic cone towers the ruin Hohenkrähen above Schlatt. The way up is actually quite narrow and meanders right up the cliff face up to the castle ruin. For the rocky ascent you will be rewarded with a fantastic view and an exciting castle ruin.

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For more than 1100 years, Laufen Castle at the Rhine Falls has witnessed many social and political upheavals. Not infrequently, due to its privileged location, it was itself the focus of disputes.
858: first mention
The Rhine Falls - at that time "big Lauffen" - gives the castle its name. The ancestral seat of the Barons of Laufen subsequently had many owners, including the Bishop of Constance, the All Saints Monastery in Schaffhausen and the Counts of Kyburg.
Source: schlosslaufen.ch/de/das-schloss/schloss-geschichte

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Kristian
July 26, 2025, Hohenkrähen Castle Ruins

The present ruins of the summit castle are located on the summit of the 644 m high Hohenkrähen ("Krayen"), a mountain of volcanic origin north of Singen in the Hegau, between the villages of Duchtlingen, Schlatt unter Krähen and Mühlhausen in the Duchtlingen district.

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Steep but well-secured stone path to the castle ruins.

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Beautiful viewpoint from the hiking trail around the crater lake of the deep blue lake and the volcanic caldera.

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For more than 1100 years, Laufen Castle at the Rhine Falls has witnessed many social and political upheavals. Not infrequently, due to its privileged location, it was itself the focus of disputes. 858: first mention The Rhine Falls - at that time "big Lauffen" - gives the castle its name. The ancestral seat of the Barons of Laufen subsequently had many owners, including the Bishop of Constance, the All Saints Monastery in Schaffhausen and the Counts of Kyburg. Source: https://www.schlosslaufen.ch/de/das-schloss/schloss-geschichte/

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On the rock trip No. 1 Yellow Line you can experience the Rhine Falls from a unique perspective. The ship takes you to the heart of the Rhine Falls, the mighty central rock. During a 20-minute stop there you have the opportunity to climb the more than 100 steps to the 30-meter-high viewing platform. The climb is worth it, once you reach the top you are rewarded with a unique 360-degree view of the Rhine Falls. On the return trip to the harbor there is another incomparable photo backdrop! Source: https://rhyfall-maendli.ch/linienfahrten-erlebnisse/felsenfahrt/

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It is impressive how much water is constantly coming down there. A great natural spectacle.

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At 23 meters high and 150 meters wide, the Rhine Falls is one of the largest and most water-rich waterfalls in Europe.

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Great photo opportunities at every corner and a super nice view

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Frequently Asked Questions

What natural features can I explore directly in Tengen?

Tengen is home to the picturesque Mühlbachschlucht (Mühlbach Gorge). This gorge features cascading waterfalls, including one with a 13-meter drop, and a well-developed circular hiking trail with bridges and footbridges. You can also discover the ruins of an old mill and remnants of historical millstone mining along the path.

Are there any unique geological natural monuments in the broader Hegau region near Tengen?

Yes, the Hegau region, where Tengen is located, is an extinct volcanic landscape. A notable geological site is the Höwenegg Crater Lake, also known as the 'Blue Eye' of the Hegau. This lake formed in a former mining area within a volcanic crater, showcasing the region's volcanic past. The entire Hegau is characterized by conical hills, which are remnants of ancient volcanoes.

Which natural monuments around Tengen offer historical insights alongside natural beauty?

The Mühlbachschlucht in Tengen features remnants of historical millstone mining and an old mill. In the broader Hegau region, many volcanic cones are topped with medieval castle ruins. For example, Hohenhewen Castle and Hohenkrähen Castle Ruins are situated on volcanic hills, offering a blend of natural landscapes and historical architecture. Further afield, Laufen Castle at the Rhine Falls is a 1200-year-old historical site directly adjacent to the impressive waterfall.

What natural monuments provide the best panoramic views near Tengen?

For breathtaking panoramic views, consider visiting Hohenhewen Castle. From its viewing platform, you can see the Hegau mountains, Lake Constance, and the Swabian Alb, and even the Alps on clear days. Similarly, the Hohenkrähen Castle Ruins, perched on a volcanic cone, offers a fantastic view of the fortress Hohentwiel, Mägdeberg Castle, and the western Lake Constance area.

Are there family-friendly natural monuments or activities around Tengen?

The Mühlbachschlucht in Tengen is an accessible and easy hiking experience suitable for families, offering a blend of natural beauty and historical elements. The Rhine Falls and Laufen Castle at the Rhine Falls are also considered family-friendly, with facilities and viewing platforms designed for visitors of all ages.

What is the best time to visit the Mühlbachschlucht in Tengen?

The Mühlbachschlucht is particularly impressive after heavy rainfall or during strong frost, when the waterfalls are at their most dramatic. However, its serene atmosphere and lush greenery make it a pleasant visit throughout the warmer months as well.

What outdoor activities can I do near the natural monuments around Tengen?

The region around Tengen offers diverse outdoor activities. You can find numerous routes for cycling, gravel biking, and running. For instance, there are cycling routes like the 'View of the Hegau Volcanoes – View of the Hegau loop' and running trails such as the 'Mühlbach Gorge – View of the Alps over Tengen loop'. You can explore more options in the Cycling around Tengen, Gravel biking around Tengen, and Running Trails around Tengen guides.

Are there hiking trails near the natural monuments in Tengen?

Yes, the Mühlbachschlucht in Tengen features a well-developed circular hiking trail. For more extensive hiking, the Hegau volcanic landscape offers trails leading to sites like Hohenhewen Castle and Hohenkrähen Castle Ruins, often with intermediate to challenging difficulty. You can find various running and hiking routes in the Running Trails around Tengen guide.

What makes the Rhine Falls a significant natural monument near Tengen?

The Rhine Falls is an impressive natural spectacle, being the largest waterfall in Europe. It is 150 meters wide and 23 meters high, with up to 600,000 liters of water per second cascading down, especially dramatic after snowmelt. Its estimated age is approximately 15,000 years, making it a truly ancient and powerful natural landmark.

Can I find a place to relax and have a picnic at the natural monuments?

Yes, the Mühlbachschlucht in Tengen features a designated barbecue area with seating, inviting visitors to linger and enjoy the natural surroundings. This makes it an ideal spot for a picnic or a relaxing break during your exploration.

What kind of wildlife can I expect to see around the natural monuments in Tengen?

While specific wildlife sightings are not guaranteed, the diverse ecosystems of the Hegau volcanic landscape and the lush environment of the Mühlbachschlucht provide habitats for various local flora and fauna. Keep an eye out for birds, small mammals, and diverse plant life typical of central European forests and river gorges.

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

EigeltingenGottmadingenThayngenRadolfzell am BodenseeStockachAllensbachGailingen am HochrheinSteißlingenSingen (Hohentwiel)Orsingen-NenzingenSingen (Hohentwiel)EngenMühlhausen-EhingenVolkertshausenÖhningenMühlingenHilzingenGaienhofenRielasingen-WorblingenBüsingen am HochrheinMindelsee

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