ostreznicka cave in the area of zloty potok in the jura krkowsko-czestochowska in poland

area attraction background beautiful cave cavern closeup czestochowa environment forest formation geology inside interesting jura karst krakow krakowskoczestochowska krkowsko-czestochowska landscape mountain natural nature ostreznicka outdoor pattern phenomena poland potok rock scene scenery silesia stalactite stalagmite stone tourism tourist trail travel trees underground upland valley wall wiercica zloty