Dare to uncover the secrets of centuries-old castles! The Region of Surprises is home to more than fifteen castles, country estates and historic manor houses. From medieval fortresses to stately summer residences built by wealthy merchants during the Golden Age. Discover them for yourself!

Castle Day

Every year on Whit Monday, castles and country estates in the Region open their doors to the public. Join in with tastings, small performances, storytellers, falconry shows and guided tours. New this year are the draught horse shows! The theme of 2026 is 'Love' — discover the romantic stories behind the castle walls. Can you find all fifteen castles and country estates in our Region?

Castle open day

Visit 1 of the 15 Castles or Country Estates

Castles full of stories

Every castle and country estate in the Region is unique they are beautiful places full of stories that give character to the landscape. During the Golden Age, wealthy city dwellers and noble families built their summer residences along the inner dune ridge, as green oases away from the bustle of the city.

That rich history is still tangible today, not only in the magnificent houses and historic interiors, but also in the surrounding landscape gardens and parklands. Curious about the stories behind the castle walls?

Discover story's

Cycle along the castles of Voorschoten

Want to discover the castles of the Region at your own pace? Grab your bike and ride the Silver Route! This 16-kilometre experience route takes you past Kasteel Duivenvoorde and Buitenplaats Berbice in Voorschoten. Walk through centuries-old castle gardens, discover the silver heritage of the village and enjoy beautiful views over the polders and waterways. The route can also be combined with a cycle trip into the city centre of Leiden. A perfect castle day on the bike!

Cycle along the castles

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