π The longest drainage adit in European coal mining, a significant historical and engineering marvel, offering various underground tours and boat rides in Zabrze, Poland. Recognized as a Wonder of Poland 2025. # Why Go π Explore 1.5 km of ancient mining tunnels and discover 200 years of Upper Silesian mining history. πΆ Experience Europe's longest underground boat trip. π¨βπ©βπ§βπ¦ Visit Park 12C for family-friendly learning and play. π» Dine and drink 320 meters underground. # Why Avoid π§ Some sections are narrow, potentially challenging for claustrophobic visitors. # π° Cost Check the official website of the Museum of Coal Mining in Zabrze for ticket prices. # π Hours Daily, hours vary by season and tour availability. # π ΏοΈ Parking Available at Carnall shaft and near ul. K. Miarki.