hiking trail with wooden boardwalk and steps in poland's stolowe mountains. szczeliniec wielki

poland mountain cave mountains tourist route landscape shadow tree view destination hiking trail forest national park stairs steps stone boardwalk crevice flooring dark entrance exit vertical footway outdoors nature beauty valley hill travel destinations footpath day sunny summer tourism vacations tranquil scene range environment outdoor pursuit rock object grass reserve tranquility sunlight blue peak plant wooden poland#39aph39#s stolowe szczeliniec wielki mountains wielki