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Routes
Places to see
Castles
Switzerland
Eastern Switzerland
St. Gallen

See-Gaster

Routes
Places to see
Castles
Switzerland
Eastern Switzerland
St. Gallen

See-Gaster

The Top 12 Castles in See-Gaster

A visit to a castle — whether you stumble over one during a hike outdoors or walk your way around the grounds with a guide — is always something special, and you’ve got 12

beautiful castles to choose from in See-Gaster. Just browse our list to find your top castle , and add some history to your next adventure!

Last updated: November 15, 2025

View of Rapperswil's Old Town and Castle

Highlight • Viewpoint

Hike across a wooden walkway to the Hurden Peninsula. Or take a boat trip on Lake Zurich. Visit Knie's Children's Zoo. Or simply explore the old town on a walking tour.

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Rapperswil Old Town

Highlight • Historical Site

Great old town right on the lake with many restaurants and cafes. Good place for a break or as a meeting point

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Stralegg Castle Ruins (Roman Watchtower)

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Beautiful ruin above Lake Walen.

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Rapperswil Castle

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The historic Rapperswil Castle is worth a visit. At least the castle courtyard and the herb garden are open on weekends. Except for the Polish Museum, the castle is not …

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View of Rapperswil, the castle and the wooden footbridge

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Beautiful walk and the boardwalk bridge crossing over to Rapperswil is stunning.

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The Museum of Polish Culture and History

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The Museum of Polish Culture and History, which is currently housed on the second floor of the castle, shows the eventful history of this institution. It documents the Polish-Swiss relations …

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The deer park on the castle hill

Highlight • Structure

Since 1871 there has been a supervised deer park with a max. 9 Fallow deer as a reminder of the legend of the city's foundation. The Rapperswil-Jona Tourist Office (since …

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Seedamm and Rapperswil Old Town

Highlight (Segment) • Settlement

The old town of Rapperswil is always worth a visit!
On the Seedamm often strong bicycle traffic, was already witness of 2 accidents (passing fast eBikes)!

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Slide at Rapperswil Castle Playground

Highlight • Rest Area

It looks steep, but is only half as fast:-)

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Fründsberg Castle Ruins

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Fründsberg is an abandoned hilltop castle in the Tössbergland, above the hamlet of Oberholz in the municipality of Eschenbach (canton of St. Gallen), on the canton border between St. Gallen and Zurich.

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Didn’t find what you were looking for?

Explore See-Gaster’s best castles region by region:

GommiswaldKaltbrunnUznachRapperswil-JonaSchänisSchmerikon

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Looking for the best castles somewhere else? Discover other guides in See-Gaster:

Bodensee (SG)HäggenschwilAndwil (SG)WittenbachGossauGaiserwaldEggersrietMuolenWahlkreis RheintalRorschachWerdenbergSarganserlandToggenburg

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