the big natural bridge in the rakov skocjan valley rakek or notranjski regijski park rakov skocjan, notranjska regional landscap

attraction autumn background beautiful big bridge cave cerknica collapse countryside creek crossing depression environment europe fall famous field flood forest grass green hiking hole karst kras landmark landscap landscape leaf limestone natural nature notranjska notranjski outdoor park path phenomena protected rakek rakov regijski regional rock scene scenery scenic sinkhole skocjan slovenia slovenija stone stream summer sump tourism travel tree underground valley wall water waterfall wood