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Switzerland
Eastern Switzerland
Thurgau
Bischofszell

Sulgen

Top 20 Natural Monuments around Sulgen

Natural monuments around Sulgen offer diverse natural attractions within the Thurgau region of Switzerland. The area is characterized by its gentle hills, forests, and wetlands, providing varied landscapes for exploration. Key features include serene nature reserves and elevated viewpoints, showcasing the region's natural beauty. These natural monuments around Sulgen provide opportunities for observing local flora and fauna.

Best natural monuments around Sulgen

  • The most popular natural monuments is Last Ruin, a castle that features the old ruined tower of…

Last updated: June 26, 2026

Bommer Weiher Water Lilies

Highlight • Lake

Absolutely quiet nature reserves, ideal for relieving stress.

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Nollen

Highlight • Viewpoint

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

Highlight • Natural Monument

A moor is being repaired "Info Center"

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Last Ruin

Highlight • Castle

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

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Popular around Sulgen

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Hiking around Sulgen

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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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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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🅰️strid
September 18, 2022, Ruine Last

http://www.ruinelast.ch/mobile/

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sunnysisland
July 16, 2022, Ruine Last

Great tour, good basic construction and surefootedness required, some sections of the route are more difficult to walk on

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Driving is prohibited in Hudelmoos. So park your bike and set off on foot!

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You can leave your bike here (if necessary even chain it to the no-biking sign) and then explore the Hudelmoos on foot. You should plan an hour for this.

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Very beautiful moor, accessible via a well-maintained network of paths. Various information boards provide information on all sorts of topics (history, natural history, etc.).

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Frequently Asked Questions

What are some of the most notable natural monuments to visit around Sulgen?

The region around Sulgen offers diverse natural attractions. You can explore the serene Bommer Weiher Water Lilies, known for its tranquil nature and ideal for birdwatching. For breathtaking panoramic views, visit Nollen, often called “the Rigi of Thurgau.” Additionally, the Hudelmoos Nature Reserve provides a unique experience with its regenerating raised bog and diverse ecosystem.

Where can I find panoramic views of the surrounding landscape?

For magnificent panoramic views, head to Nollen. From this 735-meter-high hill, you can enjoy extensive vistas of Lake Constance, the Thur Valley, the Hegau, the Säntis, and the Churfirsten.

Are there family-friendly natural monuments or activities in the area?

Yes, several natural monuments around Sulgen are suitable for families. The Bommer Weiher Water Lilies and Hudelmoos Nature Reserve are great for nature observation and gentle walks. Nollen also offers a family-friendly viewpoint with a restaurant.

What kind of wildlife can I observe at these natural monuments?

The Bommer Weiher is a vital habitat for diverse wildlife, including amphibians like tree frogs and newts, reptiles such as grass snakes, and rare bird species like water rails and reed buntings. Beavers can also be spotted there. The Hudelmoos Nature Reserve is considered a biodiversity hotspot, home to numerous bird species, butterflies, dragonflies, and various plants.

What is the best time of year to visit the natural monuments around Sulgen?

The natural monuments around Sulgen can be enjoyed year-round. Spring and summer are ideal for observing water lilies at Bommer Weiher and for general nature observation, including birdwatching and amphibians. Autumn offers beautiful foliage, and even in winter, the tranquil landscapes provide a peaceful experience.

Are there historical sites among the natural monuments?

Yes, the Last Ruin is a significant historical site. It features the old ruined tower of a hilltop castle dating back to the 12th century, standing on a hilltop in Kradolf-Schönenberg.

Are there hiking opportunities near these natural monuments?

Absolutely. The region around Sulgen offers various hiking trails. For example, you can find routes like the 'Last Ruin – Roote-Bach Bridge loop' which is an easy hike. Many trails allow you to explore the natural beauty of the area. You can find more hiking options in the Hiking around Sulgen guide.

What other outdoor activities can I do near these natural monuments?

Besides hiking, the area is excellent for cycling. You can find numerous road cycling routes, such as the 'Tree-Lined Avenue – Cycle path with a view of Säntis loop,' or explore gravel biking trails like the 'Country Inn at the Canal – View of the River Thur loop.' For more details, refer to the Road Cycling Routes around Sulgen and Gravel biking around Sulgen guides.

Is parking available at the natural monuments?

Yes, for instance, the Hudelmoos Nature Reserve Parking Area offers a suitable, larger car park for visitors exploring the Hudelmoos. Parking availability may vary for other locations, so it's advisable to check specific monument details.

What do visitors enjoy most about the natural monuments around Sulgen?

Visitors particularly appreciate the tranquility and natural beauty of the area. Many find the nature reserves, like Bommer Weiher, ideal for relieving stress and observing wildlife. The panoramic views from spots like Nollen are also highly praised for their extensive vistas of the region.

Are there any specific tips for visiting the Bommer Weiher?

When visiting Bommer Weiher, bring binoculars and a camera for optimal nature observation, as you might spot kingfishers or other rare birds. There's a short jetty leading to a hut with a viewing platform, perfect for enjoying the water lilies and bird life. A fire pit is also available in the forest area north of the ponds.

Can I find places to eat near the natural monuments?

Yes, for example, Nollen features a restaurant where you can enjoy a meal with a view. In Sulgen itself, and the surrounding towns, you will find various cafes and pubs.

What is unique about the Hudelmoos Nature Reserve?

The Hudelmoos Nature Reserve is unique for its regenerating raised bog, which formed from small lakes after the last Ice Age. It's a significant biodiversity hotspot with luminous birch trunks, dense reed belts, and glittering streams. The area also has a history of peat extraction, with ongoing efforts to preserve its species-rich reed meadows and overall biodiversity.

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

Hauptwil-GottshausKradolf-SchönenbergErlenZihlschlacht-SitterdorfAmriswilHohentannen

Nearby adventure guides

Things to Do around Kradolf-Schönenberg

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