On September 10th and 11th there will be a small festival for all those interested in cultural heritage. A special guided tour of Grabštejn Castle with the castellan: at 11 a.m. on both days. Entry: 300 CZK.
Web: https://www.hrad-grabstejn.cz/cs/akce/85586-dny-evropskeho-dedictvi-na-grabstejne