Best natural monuments around Rorschach are situated on the southernmost bay of Lake Constance, a large body of water shared by Switzerland, Germany, and Austria. This harbor town provides direct access to the lake and is a gateway to the natural features of the Alter Rhein and the nearby Appenzell Vorderland. The region offers diverse natural landscapes, including significant wetland areas and hilly terrain, providing opportunities for outdoor activities.
Last updated: May 11, 2026
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Here the Old Rhine flows into Lake Constance (Rhine Delta).
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The Rhine Delta is a characteristic marsh landscape. The area includes the mouth of the Rhine into Lake Constance, the largest freshwater delta in Europe. The Old Rhine forms the western border, and the area is bordered in the east by the Dornbirner Ache.
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The most possible point to approach is where the Old Rhine flows into Lake Constance at the Rheinspitz.
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The short path here leads over roots and can only be done on foot from the main path.
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A small hut with lots of information about the birds that live here.
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Beautiful floodplain forest on the Old Rhine in Switzerland
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The Rhine delta of Lake Constance is the river delta on the south-eastern shore of Lake Constance, which the Rhine formed in a former lake area. It lies mostly in the Austrian state of Vorarlberg, with smaller areas lying in the Swiss canton of St. Gallen. The two peninsulas in the lake are called Rheinspitz (to the west) and Rohrspitz (to the east). After the retreat of the Rhine glacier after the last glacial period, Lake Constance was formed, which originally extended further south in the area of the Rhine valley. At the same time, the formation of the delta began at the confluence of the Alpine Rhine. This process continues to this day and is part of a process that would end in several thousand years when Lake Constance would completely silt up. Source: Wikipedia
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There is a tennis club on the Polderdamm in Fussach. A young couple runs a small restaurant there, the Kostbar. Highly recommended and right on the bike path.
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Rorschach, situated on the southernmost bay of Lake Constance, offers direct access to this expansive body of water. Beyond the lake, you can explore the Rheindelta Nature Reserve, which is the largest wetland area on Lake Constance, known for its unique flora and fauna. Another notable feature is the Alter Rhein (Old Rhine), particularly its Mouth of the Old Rhine at Rheinspitz, where the river flows into Lake Constance.
Yes, several natural areas around Rorschach are suitable for families. The Rheindelta Nature Reserve and the Mouth of the Old Rhine at Rheinspitz are both categorized as family-friendly. Additionally, the Schlossweiher Untereggen, an idyllic pond in a nature reserve, is a popular local recreation area where children can enjoy observing water lilies and amphibians.
The Rheindelta Nature Reserve is particularly rich in wildlife, especially birds, due to its status as the largest wetland area on Lake Constance. The Bisenwäldli Observation Hut provides information about the local bird species. You might also spot storks at the Stork Nest and Pond Nature Reserve, even during winter. The Schlossweiher Untereggen is an amphibian spawning area, offering a home to various small animals.
The natural monuments around Rorschach are enjoyable throughout the year. Spring and summer are ideal for boat trips on Lake Constance, stand-up paddleboarding, and observing the vibrant flora and fauna in the wetlands. Autumn offers beautiful colors, especially in the Appenzell Vorderland. Even in winter, areas like the Stork Nest and Pond Nature Reserve can be visited, as storks often remain there.
Yes, there are numerous hiking opportunities. For easy walks, you can explore routes like the "Rheindelta Nature Reserve – Reed Beds in Rheinholz loop from Rheineck" or the "Bisenwäldli Observation Hut – Bisewäldli Nature Reserve loop from Flugplatz St. Gallen-Altenrhein." You can find more details on these and other easy hikes in the Easy hikes around Rorschach guide. For more challenging terrain, the nearby Appenzell Vorderland offers hilly landscapes and panoramic views suitable for experienced cyclists and hikers.
Beyond hiking, the region offers various outdoor activities. Lake Constance is perfect for boat trips and stand-up paddleboarding. Cycling is popular, especially in the Appenzell Vorderland for challenging routes, or along the Lake Constance cycle path. You can find running trails, including loops around the Alter Rhein, in the Running Trails around Rorschach guide, and mountain biking routes in the MTB Trails around Rorschach guide.
Rorschach is well-connected, and public transport options are available to reach many natural attractions. For instance, the Alter Rhein area, including the Bisenwäldli Observation Hut, can be accessed. For specific routes and schedules, it's advisable to check local transport information, but the region generally supports access to its natural beauty.
While Rorschach is more known for its wetlands and lake features, the region does have interesting geological elements. The Engraved Boulder Above Lake Constance is a notable natural monument, offering a glimpse into the area's geological past and providing an intermediate hiking experience through the forest.
Yes, you can find amenities near some natural areas. For example, there is a small restaurant called Kostbar at the tennis club on the Polderdamm in Fussach, close to the Rheindelta Nature Reserve. Rorschach itself, as a harbor town, also offers various dining options along its lakeside promenade.
Visitors particularly appreciate the tranquility and natural beauty of the region. The diverse landscapes, from the expansive Lake Constance to the serene wetlands of the Rheindelta Nature Reserve and the idyllic Schlossweiher Untereggen, offer opportunities for relaxation and connection with nature. The chance to spot wildlife and enjoy scenic views, often combined with easy walks or bike rides, is a major draw.
The Schlossweiher Untereggen, while primarily a natural reserve, is also considered a historical site due to its proximity to Sulzberg Castle (also known as Mötteli Castle). This blend of natural beauty and historical context adds another layer of interest for visitors.


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