Not Suitable For: People over 70 years
Know Before You Go: Please note that the temperature in the tunnels remains stable at 8–9°C (46–48°F) with humidity over 80%. We recommend wearing warm clothing for your comfort during the visit.
Know Before You Go: Age requirement for the tunnels
Know Before You Go: Access to the underground tunnels is available only for children aged 4 years and older.
Know Before You Go: Physical effort required to reach the tunnels
Know Before You Go: To get to the tunnels, visitors should be prepared for a significant number of stairs, including both descending and climbing up — comparable to walking up to approximately the 5th floor.