velky sisak, vysoke kolo and vysoka plan hills from muzske kameny in krkonose mountains on czech-polish borders

bohemia czech destination formation geology giant hike hiking hill jamy kameny karkonosze kolo kotly krkonose krnap landscape mlyn mountain mountains muzske national nature outdoor park plan poland range republic rock scenery scenic sisak smelec smielec snezne sniezne spindleruv stone szyszak tourism trail travel trek trekking vacation velky vysoka vysoke wielki