Seegrotte
Fee required
Parking available
Seegrotte is Europe's largest subterranean lake, located in a former gypsum mine in Hinterbrühl, Austria. Formed by a flood in 1912, it later served as a secret aircraft factory during WWII and has been a popular tourist attraction offering boat tours since 1930.

📜 Former gypsum mine, now Europe's largest subterranean lake.
🔍 Used as a secret aircraft factory during WWII.

Why Go

🌊 Unique boat tour on the underground lake.
🏭 Explore a site with significant mining and WWII history.
💡 Fascinating natural and historical wonder.

Why Avoid

🥶 Cool temperature year-round (around 9-12°C), bring warm clothing.
♿ Partial accessibility, boat tour might be challenging for some.

Tips

👟 Wear comfortable, sturdy shoes.
🗓️ Best to visit between April and October.
📸 Flash photography is usually restricted.

Cost

💰 Adults 12-18 €, Children 7-12 €, Seniors 10-15 €.

Hours

🕒 Daily, April-Oct 9:00-17:00, Nov-Mar 10:00-15:00.

🅿️ Parking

Free parking available directly at the entrance.

Last updated 8 days ago

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