After 1945 and the expulsion of the German inhabitants, ski resorts expanded with new lifts and slopes on both sides of the mountains, while the traditional mountain huts were neglected. Many were victims of fires, such as Elbfallbaude, Riesenbaude, and Prinz-Heinrich-Baude. Similarly many hiking trails, ski jumps and luge tracks fell into disrepair due to lack of care. The cross-border hiking trail on the main ridge called Polish - Czech Friendship Trail was closed in the 1980s for all but Polish and Czechoslovak citizens. The mountains are on the route of main Sudetes hiking trail, Główny Szlak Sudecki, which follows the main ridge. Today, the Krkonoše are a popular holiday destination in both summer and winter.