📜 Labyrinth-like network of tunnels under Odesa, Ukraine, mostly from limestone mining.
🔍 One of the world's largest urban labyrinths, spanning up to 2,500 kilometers.

Why Go

🌍 Explore the largest catacomb system globally
🕵️‍♀️ Discover hideouts of WWII Soviet partisans and smugglers
🗿 See mummified bodies and partisan weapon caches
🚶‍♀️ Join professional expeditions for multi-day underground treks

Why Avoid

⚠️ Extremely dangerous to explore on your own
💀 Risk of getting lost and dehydration, as demonstrated by past incidents
🚫 Only a small portion officially open to the public

Tips Hire professionals for guided tours outside the official museum. Visit the 'Museum of Partisan Glory' in Nerubayskoye for official access.

Cost

💰 Professionals can be hired for 250 UAH per person, cost varies by route and time.