📜 The Ostwall Fortification, also known as Festungsfront Oder-Warthe-Bogen, is a former Nazi Germany military defense line, now Europe's largest man-made bat reserve.
🔍 It features an extensive underground bunker system and tunnels near Pniewo, Poland.
🦇 Witness tens of thousands of hibernating bats (seasonal)
🏛️ Explore one of Nazi Germany's largest and most technologically advanced fortification systems
🚶 Discover 25-32 miles of underground tunnels, support chambers, and pillbox bunkers
📚 Learn about World War II history through guided tours and museum exhibits
🚫 Tunnels are closed to visitors during winter/bat season (December-February)
🚶♀️ Access to tunnels is only possible with a guided tour
👥 Pniewo entrance can be crowded during peak season
📍 Choose between Pniewo (more popular) or Pętla Boryszyńska/Boryszyn Loop for entry
🧥 Bring warm clothing; underground tunnels maintain a constant temperature of around 10°C
⏰ Tours range from 1 to 6 hours, with medium tours (1.5-2.5 hours) recommended
💰 Entrance fees apply per person, with a separate charge for guides depending on tour duration and group size.
🕒 Open to visitors outside of the bat season; specific hours available on the museum's website.
Last updated 6 days ago
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