Mirachowo Caves: Geological Treasures of Kashubia

Located within the Lubygość Nature Reserve, on the shores of the similarly named lake, the Mirachowo Caves are a unique system of karst caves formed by the combined forces of nature and human activity. Situated on the southwestern slope of a former gravel pit, they are distinguished by their specific conglomerate structure, with the upper layer forming a solid plate supported by natural columns. The caves have a depth ranging from 3 to 6 meters, and their height is approximately 1.5-2 meters. These formations were discovered in the 1950s and 1960s during gravel extraction. The excavation revealed successive layers of conglomerate, and as a result of erosion and landslides, these structures formed the current shape of the caves. The caves are one of the youngest geological formations of this type in Poland, and their unusual appearance and history attract numerous tourists and researchers. This place not only fascinates geologists but also stimulates the imagination, being associated with local legends about the knight Mirach, who was said to have hidden here during the uprising against the Teutonic Knights in the 14th century.