National Park - Ojcow and Pieskowa Skala Castle In the Ojcow National Park, which covers a surface area of 1440 hectares in the Valley of the Pradnik enclosed by Pieskowa Skala cliffs, you can see virtually all of the natural components of a Jurassic landscape. Driving along a winding road (on special permission by prior reservation), we pass breathtaking Jurassic rock formations such as the "Cracovian Gate" and the "club of Hercules". You will see the ruins of Ojcow Castle and the "little church on the water". On the route along the tourist "Eagles‘ Nests Trail" we visit one of Poland‘s masterpieces of Renaissance palace architecture, Pieskowa Skala Castle, towers over a steep rocky crag.