Castles around Altendorf, Switzerland, offer a glimpse into medieval history and strategic landscapes. The region, situated near Lake Zurich, features historical sites ranging from well-preserved ruins to former commanderies. These locations served as defensive positions and administrative centers, reflecting centuries of local power and influence. Visitors can explore various castle types, often providing scenic views of the surrounding area.
Last updated: August 21, 2026
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Great old walls, absolutely recommended
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Schloss Rapperswil The Schloss Rapperswil is the landmark of the picturesque city of roses on Lake Zurich. The castle, built in the early 13th century and later repeatedly redesigned, is visible from afar. It towers above the town on the Lindenhof, a ridge that runs through Rapperswil. The renovated castle delights with an atmospheric visitor tour and takes you on a fascinating journey through time, exploring the castle's history. A highlight for children is certainly the northern flank of the castle hill, as fallow deer have lived here since 1871, reminiscent of the legend of the city's founding. Just below the deer park, various play elements such as a climbing wall or a speaking tube also invite children to play and let off steam. The exhibition inside the castle can be visited. Additionally, the castle tower offers a breathtaking view over the city and the lake. Text / Source: Tourist Information, Visitor Center, Fischmarktplatz 1, Rapperswil https://www.rapperswil-zuerichsee.ch/de/besuchen/sehenswuerdigkeiten/schloss-rapperswil
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Very nice to bike here
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The impressive building is home to exciting exhibitions, a large library and a collection of weapons from the Middle Ages. Only open in the summer months.
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Magnificent view over Rapperswiel and the upper Lake Zurich
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The sunsets from the castle or the bridge are simply spectacular
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Rapperswill Castle. Supposedly one of the few Catholic strongholds against the Reformation.
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The Altendorf area in Switzerland offers a rich variety of historical sites, including medieval castle ruins, well-preserved commanderies, and strategic viewpoints. You can explore places like the 800-year-old Bubikon Commandery, considered the best-preserved Johanniter commandery in Europe, or the impressive Altwädenswil Castle Ruins.
Yes, several sites are great for families. The Altwädenswil Castle Ruins, for instance, feature barbecue areas and serve as an adventure playground for children, with nearby forest areas for relaxation. The Bubikon Commandery also offers engaging historical insights for all ages.
Many castle sites offer scenic views. The View of Rapperswil's Old Town and Castle provides stunning perspectives over Lake Zurich and Rapperswil. The Alt Rapperswil Castle ruins, though largely historical, also offer scenic views over Lake Zurich and the surrounding landscape. Altwädenswil Castle Ruins are situated near pleasant forest areas.
The region around Altendorf is excellent for outdoor activities. You can find various routes for mountain hiking, gravel biking, and cycling. For example, explore mountain hikes like the 'Alp Wildegg Mountain Hut – Chli Aubrig Summit loop' or enjoy gravel biking on the 'Gravel ride around the Obersee'. Cycling routes include the 'Altendorf lido – Rapperswil Harbour loop'. You can find more details on these activities in the Mountain Hikes around Altendorf, Gravel biking around Altendorf, and Cycling around Altendorf guides.
Yes, hiking trails are a great way to access some of the historical sites. For instance, the Alt Rapperswil Castle ruins are accessible via hiking trails from the Altendorf Seestatt boat landing and Lachen railway station. You can also find numerous mountain hiking routes in the area, some of which may offer views or access to historical points. Check the Mountain Hikes around Altendorf guide for options.
The best time to visit is generally during the warmer months, from spring to autumn, when the weather is pleasant for exploring ruins and enjoying outdoor activities. Some sites, like the Bubikon Commandery museum, may be closed during winter months, so it's advisable to check specific opening hours if planning a winter visit.
Yes, some locations offer amenities. The Bubikon Commandery has a cute bistro. Additionally, Schloss Grynau and country inn includes a country inn right next to the castle, though it's privately owned and has specific closing days.
When visiting castle ruins, especially those with uneven terrain like Altwädenswil Castle Ruins which are not secured by railings, sturdy footwear is recommended. If you plan to hike, bring appropriate gear. For family visits to sites with barbecue areas, consider bringing picnic supplies. Always check the weather and dress accordingly.
The duration varies depending on the site. Exploring ruins like Alt Rapperswil Castle or Altwädenswil Castle Ruins might take 1-2 hours, especially if you combine it with a short walk or picnic. A visit to the Bubikon Commandery, with its museum, could take longer, potentially 2-3 hours, to fully appreciate its history.
Yes, some sites are accessible by public transport. The Alt Rapperswil Castle ruins can be reached from the Altendorf Seestatt boat landing and Lachen railway station. For other locations, it's advisable to check local public transport schedules for the most convenient access points.
Pfäffikon Castle, also known as Weissenburg, has a rich history dating back to the 10th century when the land was donated to the Einsiedeln monastery. The castle tower, built in the 13th century, served as a defensive structure and later an administrative center for the monastery. It played a crucial role in regional conflicts and hosted important visitors, reflecting its significance to both the monastery and local governance.
While the guide highlights popular spots, exploring the area can reveal lesser-known historical points. For instance, Schloss Grynau and country inn, a medieval low castle on the Linth, offers a glimpse into 13th-century history and was part of a fortress during WWII, providing a unique historical context beyond typical ruins.


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