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Switzerland
Eastern Switzerland

Thurgau

Top 20 Natural Monuments in the Thurgau

Best natural monuments in the Thurgau offer diverse natural landscapes for exploration. The region is characterized by its proximity to Lake Constance, extensive shorelines, and wide river valleys. Thurgau features 70 kilometers of the Lake Constance shore, alongside numerous smaller lakes, nature reserves, and elevated viewpoints. These natural features provide varied opportunities for outdoor activities and appreciation of the natural world.

Best natural monuments in the Thurgau

  • The most popular natural monument is Last Ruin, a castle that features…

Last updated: May 9, 2026

Lake Bichel

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Herllicher bathing lake in the summer, peace and nature in the winter half-year.

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Bommer Weiher Water Lilies

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Absolutely quiet nature reserves, ideal for relieving stress.

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A really nice wooden footbridge that leads into an idyllic path through the woods, definitely a highlight on Lake Hüttwil!

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Hüttwilen Lake Lido

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A nice 6-7 km long trip from Hüttwilen

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Nollen

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The Nollen is 735 meters high and offers a magnificent panoramic view of Lake Constance, the Thur Valley, the Hegau, the Säntis and the Churfirsten.

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Hudelmoos nature reserve
Luminous birch trunks in front of dense reed belts, glittering streams between ponds, radiant swamp marigolds - thanks to individual paths that lead into the area, you …

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Hudelmoos Nature Reserve

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A moor is being repaired "Info Center"

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Last Ruin

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The Ruine Trail is located at the Last ruins, is approx. S2

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Nussbaumersee

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A small tower to observe the nature at the lake undisturbed

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Landslide Road

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Easily passable on foot.

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Tips from the Community

Thomas
April 7, 2026, Ruine Last

Is actually only worth it if you are there anyway. The best thing is the view from the opposite slope.

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If you have your swimsuit with you here, you're doing everything right.

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The recommended diversion due to the new road closure from January 24, 2025 is listed on Swiss Topo (road closures).

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The passageway is now TOTALLY closed: https://www.bischofszell.ch/aktuellesinformationen/2346937

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Carlo Schudel
October 12, 2024, Ruine Last

A very varied and interesting hike with good signage and paths

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Waldleben
July 13, 2024, Nollen

Because the view can be beautiful in good weather, and people like to come up here.

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Christian
June 25, 2023, Bichelsee

Pack your base pants, it's worth making a stopover here...

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Frequently Asked Questions

What are some of the most popular natural monuments in the Thurgau region?

The Thurgau region offers a variety of beloved natural monuments. Visitors particularly enjoy the panoramic views from Nollen, which overlooks Lake Constance, the Thur Valley, and the Alps. Another favorite is Nussbaumersee, known for its three bathing areas and barbecue spots, making it a wonderful local recreation area for walking and swimming. The historic Last Ruin, an old ruined tower dating back to the 12th century, also attracts many visitors.

Are there family-friendly natural monuments in Thurgau?

Yes, many natural monuments in Thurgau are ideal for families. Nussbaumersee and Lake Bichel both offer bathing areas and are great for swimming and relaxing. The Bommer Weiher Water Lilies area, a quiet nature reserve, features a viewing platform and is perfect for observing bird life. The Nollen viewpoint is also considered family-friendly, offering stunning vistas.

What kind of natural features can I expect to see in Thurgau?

Thurgau is characterized by diverse natural landscapes. You'll find extensive shorelines along Lake Constance, numerous smaller lakes like Hüttwilersee, Nussbaumersee, and Hasensee in the Seebachtal, and vital wetlands such as Bommer Weiher. The region also boasts elevated viewpoints like Nollen, orchid-rich forests on Immenberg, and the picturesque High Rhine near Diessenhofen.

What outdoor activities can I do near these natural monuments?

The natural monuments in Thurgau are excellent starting points for various outdoor activities. You can enjoy extensive cycling tours, such as the 'Tour through the apple canton' or routes along Lake Constance. For hikers, there are numerous trails, including the popular 'Nussbaumersee – Lake Hüttwiler loop' and mountain hikes like those around Hörnli. Find more inspiration for cycling at Cycling in the Thurgau and for hiking at Hiking in the Thurgau.

Are there specific hiking trails around the natural monuments?

Yes, many natural monuments are integrated into hiking networks. For instance, a popular hiking trail, 'Naturparadies Seebachtal,' circles Hüttwilersee and Nussbaumersee. The 'Panoramaweg Lustdorf' traverses the Immenberg, offering scenic views and a chance to observe diverse flora. The Last Ruin also features the challenging Ruine Trail. You can explore more hiking options in the region through the Hiking in the Thurgau guide.

What is the best time to visit the natural monuments in Thurgau?

Thurgau's natural monuments are beautiful in all seasons. Spring brings blooming orchids on Immenberg and lush greenery around Bommer Weiher. Summer is ideal for water activities at Lake Constance, Nussbaumersee, and Lake Bichel. Autumn offers picturesque landscapes for hiking and cycling, while winter provides a peaceful, serene atmosphere, especially around the lakes and nature reserves.

Are there places to eat or get refreshments near the natural monuments?

Yes, several natural monuments offer refreshment options. Nollen has a restaurant with its magnificent panoramic views. At Lake Bichel, you'll find a small kiosk, and the Bichelsee lido includes a kiosk-restaurant. Many bathing areas, such as those at Nussbaumersee, also provide barbecue spots.

Where can I find parking near the natural monuments?

Parking facilities are available at several locations. For instance, the Hudelmoos Nature Reserve Parking Area provides convenient access to the reserve. Many popular spots like Lake Bichel also have parking available nearby, making them easily accessible by car.

What are some unique natural features or wildlife I might encounter?

Thurgau is home to several unique natural features. The Immenberg nature reserve is famous for its thousands of orchids, including 26 different species, blooming in its sparse forests. The Bommer Weiher is a vital nature reserve for waterfowl and amphibians, and with patience, you might even spot a kingfisher. The Bichelsee is characterized by beautiful water lilies, adding to its charm.

Can I access these natural monuments using public transport?

While specific public transport details for each monument vary, Thurgau generally has good public transport connections. Many hiking and cycling routes are designed to be accessible via public transport, allowing visitors to reach starting points without a car. It's advisable to check local transport schedules for specific destinations.

Are there any natural monuments suitable for a short visit?

For a shorter visit, places like Lake Bichel are perfect for a quick look or a peaceful moment by the water. The Bommer Weiher Water Lilies area, with its short jetty and viewing platform, also offers a tranquil experience without requiring a long commitment. Viewpoints like Nollen can also be enjoyed for a brief, scenic stop.

What do visitors enjoy most about the natural monuments in Thurgau?

Visitors consistently praise the tranquility and natural beauty of the region. They appreciate the diverse landscapes, from the serene lakes like Nussbaumersee, perfect for walking and swimming, to the magnificent panoramic views offered by spots like Nollen. The opportunity to connect with nature, observe wildlife, and enjoy outdoor activities in a peaceful setting is a major draw.

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Find even more amazing natural monuments in the Thurgau by checking out the top Highlights region by region:

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