Karlštejn Castle is located approximately 30km west of Prague. It is one of the most beautiful castles in the Czech Republic. Construction of the castle was completed in 1365 under the reign of Holy Roman Emporer Charles IV. There is a very nice national forest around the castle with some very nice hiking. Nearby in the village of Svatý Jan Pod Skalou you can visit a beautiful monastery including the ‘holy cave’ that it was built upon.
All of the tourists aside, the Karlštejn Castle itself is really impressive. Once you arrive at the castle you can enter the area within the walls for free but access to the inside of the castle requires paying for a guided tour (220,-CZK). There are several tours in different languages during the day, but you should call in advance to determine the exact times. There is also a 70-minute tour option that visits other rooms, including the Chapel of the Holy Cross, but remember to make a reservation. You can buy tickets online.
There are several abandoned limestones near the castle that are now flooded so you can swim in any of them however it is officially forbidden. The water is very clean and warm in the summer. The biggest one calls Big America (Velká Amerika) – it is Czech Grand Canyon.
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