Park Krajobrazowy Orlich Gniazd (Eagles' Nests Landscape Park), established in 1980, covers part of the Kraków-Częstochowa Upland on the border of the Silesian and Lesser Poland voivodeships. It is famous for its limestone rocks and the medieval strongholds known as the Eagles' Nests, linked by the Trail of the Eagles' Nests. We prepared the ‘Park Krajobrazowy Orlich Gniazd’ mobile app, which presents the park's natural, landscape and cultural assets. It lets visitors explore the area at their own pace, whether on foot or by bike.