Main Key Heritage Adit
Główna Kluczowa Sztolnia Dziedziczna
Fee required
Parking available
Europe's longest drainage adit, a historic and tourist attraction in Zabrze, Poland, offering various underground tours, boat rides, and family-friendly activities. Recognized as a Wonder of Poland 2025.

📜 Longest drainage adit in European coal mining.
🔍 Historic and engineering marvel in Zabrze, Poland.

Why Go

🌊 Explore ancient mining tunnels and history
🛶 Experience Europe's longest underground boat trip
👨‍👩‍👧‍👦 Family-friendly learning and play at Park 12C
🍻 Dine and drink 320 meters underground

Why Avoid

🚧 Some sections are narrow, challenging for claustrophobic visitors
🚫 Some tours have higher minimum age requirements (e.g., 6, 10, 18 years)

Tips

⏰ Check seasonal hours and tour availability on the official website.
🅿️ Parking available at Carnall shaft and near ul. K. Miarki.

Cost

💰 Prices vary by tour, check official website for details.

Hours

🕒 Daily, hours vary by season and tour availability.