Caves and parks
There are about 1500 caves and shelters on the territory of Jura Krakowsko-Częstochowska, which puts the Polish Jurassic Highland area in this regard to on the first place in Poland. The longest among the caves them is the cave Wierna-1027m, located in the Wiercica Valley.
http://orlegniazda.pl/pl/t/Zloty_Certyfikat_dla_Szlaku_Orlich_Gniazd
Photo: Archive of the Jurassic Communities Association