Polish–Czech Friendship Trail

The Polish–Czech Friendship Trail (Czech: Cesta česko-polského přátelství, Polish: Droga Przyjaźni Polsko-Czeskiej) is a public walking path in the Giant Mountains. The path runs on both sides of the Czech–Polish border, along the main ridge and crosses or traverses all its summits.

Source: Wikipedia — Polish–Czech Friendship Trail (CC BY-SA 4.0)