Village with 2,161 inhabitants at the north-eastern foot of the Mátra Hills. The castle was built before 1320 at a height of 276 m above the village. Both the wall sections of the lower castle and the castle well can be seen and there is a passage carved into the rocks, leading to the upper castle. Lake Nyírjes, one of the most interesting peat moss moorland of Central Europe is situated west of Sirok. Important programmes of the settlement: The Castle Days of Sirok (at the third weekend of June), Crafts Camp of Fine Arts (in the first two weeks of July), International Motorcyclists´ Meeting ( the last week of July) and the National Meeting of Folk Choirs ( 20th August). There is a motel and a camping site available for visitors.