the three pigs group of rocks

three pigs rock ruins terrain mountain cliff geology badlands monument fortification landscape hill landmark plateau valley wall formation group rocks pol trzy ?winki czes svinské kameny location polish-czech border altitude 1290 amsl 290 sea level europe poland sudety mountains giant national park karkonoski narodowy horizontal panorama view mountains karkonosze sudetes landscape panorama panoramic outdoors postcard trekking day trip vacation hiking climbing trail formation boulders top cloudy sky sky clouds holiday view distant long distance away polish