We had a great tour through the Velvet Caves and The castle ruins last summer with famile members from the states. They wanted to see the south of Holland (Limburg).The guide told a lot of historical things about the caves and the castle in a rather funny way. There are some very nice charcoal drawings and sculptures on the walls and a very nicely carved out church. A nice thing to do on a hot day because of the constant temperature in the caves.
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