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Switzerland
Eastern Switzerland
St. Gallen
Wahlkreis Rheintal

Au (SG)

Top 20 Natural Monuments around Au (SG)

Best natural monuments around Au (SG) are found in a region known for its diverse natural beauty in the canton of St. Gallen, Switzerland. The area benefits from its proximity to impressive natural features in Eastern Switzerland, including prominent peaks and dramatic gorges. Visitors can explore a landscape shaped by rivers and geological formations, offering various outdoor experiences. This region provides access to a range of natural monuments, from high-altitude viewpoints to river deltas.

Best natural monuments around Au (SG)

Last updated: June 26, 2026

Covered wooden bridge over the Dornbirner Ache

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Architecturally beautiful wooden construction over the Dornbirner Ache as a connection to the Rhine delta for pedestrians and cyclists.

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Karren Viewing Platform

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Anyone who's ever on the cart must necessarily walk the root path to the top of the Staufens. The rather challenging path runs through a beautiful mountain forest. As the …

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Rhine Delta Nature Reserve

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The delta of the Alpine Rhine forms a common delta area with the eastern deltas of Dornbirner Ach and Bregenzer Ach. This delta area extends over the entire valley area …

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What a view from the Kapf, 1153 m above sea level.

The Kapf is a 1153 m high mountain in the Bregenzerwald Mountains. It is located near the town of …

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Nice flat beach for swimming at the lake.

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September 2, 2025, Rheindelta Beach on Lake Constance

The Rhine Delta of Lake Constance is the river delta on the southeastern shore of Lake Constance, formed by the Rhine in what was once a lake. It lies largely in the Austrian state of Vorarlberg, with smaller areas in the Swiss canton of St. Gallen. The two peninsulas in the lake are called Rheinspitz and Rohrspitz.

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What a view from the Kapf, 1153 m above sea level. The Kapf is a 1153 m high mountain in the Bregenzerwald Mountains. It is located near the town of Hohenems. From the summit, there are views of the Rhine Valley and Lake Constance. It is located in the Hohe Kugel - Hoher Freschen - Mellental nature reserve. Source: https://de.m.wikipedia.org/wiki/Kapf_(Bregenzerwaldgebirge)

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Always a great destination with a great view over the Rhine Valley 🥰

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Wonderful view. At the top you can also strengthen yourself in the restaurant. The descent is indicated on signs with 1 hour and 15 minutes. It took us a little less than an hour. Going up takes a little longer. According to Komoot, it was 510 meters in altitude and some sections are very steep. The cable car runs every 15 minutes from 9 a.m. to 11 p.m. (Sundays only until 9 p.m.).

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Beautiful recreation area. Great for swimming and barbecuing in summer

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Beautiful and typical wooden bridge, as you often find it in the Alps.

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Beautiful view over the Rhine Valley, easy to reach from the Milrütte car park.

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At the moment (summer 2022) there are a lot of very beautiful cardboard birds hanging in the bridge.

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Frequently Asked Questions

What are some of the most impressive natural monuments to visit around Au (SG)?

The region around Au (SG) offers a variety of impressive natural monuments. Notable highlights include the Karren Viewing Platform, which provides panoramic views of the Rhine Valley and Lake Constance. Further afield, the majestic Säntis Summit offers spectacular 360-degree views into six countries, accessible by cable car. The mystical Tamina Gorge, with its thermal spring and dramatic rock walls, is another unique natural wonder.

Are there natural monuments suitable for families with children around Au (SG)?

Yes, several natural monuments are family-friendly. The Karren Viewing Platform is accessible and offers a restaurant. The Rhine Delta Nature Reserve provides easy paths for exploration. The Covered wooden bridge over the Dornbirner Ache is a pleasant spot for pedestrians and cyclists. The Örfla Gorge also has family-friendly access points and trails.

What kind of outdoor activities can I do near these natural monuments?

The area around Au (SG) is excellent for various outdoor activities. You can find numerous routes for gravel biking, mountain hikes, and cycling. For example, the Karren Viewing Platform is a starting point for hiking trails, including a challenging root path. The Tamina Gorge offers scenic hiking trails of varying difficulty, and Säntis provides extensive hiking and snowshoeing opportunities depending on the season.

What is the best time of year to visit the natural monuments around Au (SG)?

The best time to visit depends on the specific monument and desired activities. Säntis Summit is a major attraction year-round, offering hiking in summer and snowshoeing in winter. The Tamina Gorge is generally accessible from spring to autumn, with special events like 'Light Ragaz' in summer. For general hiking and cycling around the Rhine Valley, spring to autumn offers pleasant weather.

Are there any natural monuments with unique geological features or historical significance?

Yes, the Tamina Gorge is a prime example, carved by the Tamina River over millennia and home to Europe's most abundant thermal spring. It also features the Old Bath of Pfäfers, the oldest Baroque spa in Switzerland, now a museum. Säntis Summit, composed of limestone and marl, is known for its exposed position and historical weather station. The Covered wooden bridge over the Dornbirner Ache is also an architecturally notable structure connecting to the Rhine delta.

How can I reach the Säntis Summit?

The Säntis Summit is conveniently accessible by the Säntisbahn cable car, which transports visitors from Schwägalp directly to the summit in about ten minutes. This offers impressive views during the ascent and makes the summit accessible to a wide range of visitors.

What can I expect when visiting the Tamina Gorge?

When visiting the Tamina Gorge, you can expect to explore a narrow, deep crevice with towering rock walls. A secured path leads you into the gorge, past a thermal water fountain, and into the spring water grotto where you can experience the 36.5°C warm thermal spring directly. You can also visit the Old Bath of Pfäfers, which now serves as a museum and cultural venue. The gorge offers a unique blend of natural wonder, history, and wellness.

Are there good viewpoints for panoramic scenery in the region?

Absolutely. The Karren Viewing Platform offers a wide panoramic view of the Rhine Valley and Lake Constance. Similarly, the Kapf summit cross, at 1153 meters above sea level, provides extensive views of the Rhine Valley and Lake Constance. The Säntis Summit is renowned for its spectacular 360-degree panorama, visible into six countries on clear days.

What do visitors enjoy most about the natural monuments around Au (SG)?

Visitors frequently praise the breathtaking panoramic views, especially from spots like the Karren Viewing Platform and the Kapf summit cross. The unique experience of the Tamina Gorge's thermal spring and its mystical atmosphere is also highly valued. Many appreciate the well-maintained trails and the opportunity to connect with nature, whether through challenging hikes or leisurely strolls through areas like the Rhine Delta Nature Reserve.

Are there dining options available at or near these natural monuments?

Yes, for instance, the Säntis Summit features restaurants serving traditional Swiss cuisine with breathtaking views. The Karren Viewing Platform also has a restaurant. Near the Tamina Gorge, the Old Bath of Pfäfers now functions as a restaurant, and the surrounding towns offer various culinary choices.

Can I find natural monuments that are suitable for cycling or gravel biking?

Yes, the region offers excellent opportunities for cycling and gravel biking. The Covered wooden bridge over the Dornbirner Ache is part of a connection to the Rhine delta for cyclists. The Rhine Delta Nature Reserve has very pleasant bike paths. You can explore various gravel biking and cycling routes that pass by or through natural monuments in the area.

Are there any natural monuments that are particularly good for spotting wildlife?

The Rhine Delta Nature Reserve is an important ecological area, making it a good location for observing various bird species and other wildlife, especially near the water. While not explicitly mentioned for other sites, natural areas like the Örfla Gorge and the forested paths around Kapf may also offer opportunities for wildlife spotting.

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