4.3
(37)
308
riders
60
rides
Gravel biking around Sommeri offers routes through a tranquil rural setting in the canton of Thurgau, Switzerland. The region is characterized by green meadows and standard fruit trees, providing a serene environment for outdoor activities. Proximity to Lake Constance and an extensive network of cycling routes in Canton Thurgau enhance the gravel biking experience, featuring rolling hills and forests.
Last updated: June 28, 2026
4.5
(2)
21
riders
58.1km
03:20
590m
590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
42.8km
02:46
360m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2.0
(1)
11
riders
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5
riders
22.4km
01:19
170m
170m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The official name is Groossweier, but Lengwiler Weiher also fits.
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Very pleasant from the St. Gallen side,… slightly uphill from AR,…..
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Good spot for taking a break or escaping a sudden storm! There's some places to sit, as well as an overhanging roof where you can hide from the rain :)
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There's so many great views around the lake, and this is one of them! On a clear day, you can see very far in the distance. But even with less-than-perfect weather, there's still a lot of natural beauty to enjoy.
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Colloquially, this bridge is called "Ganggelibrugg" because it sways slightly (ganggelet) due to its light construction.
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Beautiful ponds above Lake Constance.
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The baroque old town boasts sights such as the town hall, built between 1747 and 1750, with its rich Rococo decorations, and the 14th-century Church of St. Pelagius. The Thur Bridge, built in 1487, is one of the most important late medieval bridges in Switzerland. In the 9th century, Bischofszell was given the name Episcopalicella by its founder, Bishop Salomo. This translates as "the bishop's cell." Bischofszell Castle was the bishop's castle and dates back to the 13th century.
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The Sommeri region offers a wide selection of gravel bike trails, with over 90 routes available for exploration. These routes cater to various skill levels, from easy rides to more challenging excursions.
Gravel biking around Sommeri features a diverse range of terrain. You'll encounter idyllic rural settings with green meadows and standard fruit trees, characteristic of this landscape conservation area. While many routes are primarily gravel, some may include mostly paved sections, offering a varied riding experience. Be prepared for everything from smooth paths to challenging hard-gravel sections.
Yes, Sommeri offers gravel biking options suitable for beginners and families. There are 4 easy routes and 54 moderate routes, providing less demanding paths through the scenic landscape. These routes are perfect for enjoying the outdoors without requiring advanced skills or very high fitness levels.
For experienced gravel bikers seeking a challenge, Sommeri has 32 difficult routes. One notable option is the Gübsensee West Dam – Haggen Bridge (Ganggelibrugg) loop from Oberaach. This route covers over 61 km with significant elevation gain, requiring good fitness and advanced riding skills.
While the guide doesn't specify dog-friendly routes, the tranquil rural setting and extensive network of cycling paths around Sommeri generally welcome well-behaved dogs on a leash. It's always advisable to check local regulations or specific route descriptions on komoot for any restrictions before heading out with your canine companion.
Yes, many gravel bike routes around Sommeri are designed as loops, allowing you to start and finish at the same point. An example is the Hagenwil Moated Castle – Hagenwil Castle loop from Altnau, a moderate 46 km route that takes you through varied terrain and past historical sites.
While specific parking areas for all routes aren't detailed, the region is generally accessible. For tours starting near natural reserves, you might find designated parking. For instance, the Hudelmoos Nature Reserve Parking Area could be a starting point for exploring nearby trails. It's recommended to check the starting point of your chosen komoot tour for specific parking recommendations.
Sommeri is located in the Canton Thurgau, which has a well-developed public transport network. You can often combine your cycling trips with train or bus services. The nearby Lake Constance Cycling Route is also easily accessible, allowing for combinations with passenger boat or ferry trips. Check local public transport schedules for the most convenient connections to Sommeri or nearby towns like Erlen or Altnau.
The region around Sommeri is beautiful for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant landscapes, with the 'green meadows and Hochstammobstbäumen' particularly picturesque. Summer is also great, though you might prefer earlier starts to avoid midday heat. Winter gravel biking is possible, but trail conditions can vary with snow and ice, so always check local conditions.
The Sommeri area, recognized as a landscape conservation area, offers several natural highlights. You can find serene spots like the Bommer Weiher Water Lilies or explore the Hudelmoos Nature Reserve. For unique geological features, consider visiting the Hohlenstein Cave (left, west) or enjoying views from the Viewing platform near the caves.
The region around Sommeri is rich in history and culture. While gravel biking, you can pass by historical landmarks such as the Ruggisberg Chapel or Dottenwil Castle, as seen on the Ruggisberg Chapel – Dottenwil Castle loop from Altnau. The historical Christian Council Route (Route 55) also passes nearby, connecting St. Gallen and Constance. Additionally, the picturesque Stein am Rhein Old Town and the world cultural heritage site of the Abbey of Saint Gall are easily accessible for cultural enrichment.
Sommeri and the wider Canton Thurgau are well-equipped to welcome cyclists. While specific cyclist-friendly establishments in Sommeri aren't listed, the region offers various cafes, pubs, and restaurants. For local produce, you might find a Farmer Shop Amann. For accommodation, nearby towns provide options, and many establishments in this outdoor-focused region are accustomed to hosting active travelers.
The gravel biking experience in Sommeri is highly regarded by the komoot community, with an impressive average rating of 4.3 stars from over 80 reviews. More than 600 gravel bikers have explored the varied terrain using komoot, often praising the tranquil rural setting, the diverse routes, and the beautiful natural landscapes.


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