Legends, secrets and underground passages, the tunnels aren’t just for rats any more, now you can tour them, too! Built in the 17th-century by the Swedes to help protect the city, these tunnels are a fascinating relic of times past. Now having completed phase two of the renovations, visitors can ride the underground train into Tallinn's future or take a walk into the depths of the city's past. Watch your head though some of the passage ways can be a little 'hard' on you.
Tours (by arrangement) run from 10:30 - 18:00, every day except Monday. For booking, contact Kiek in de Kök tel. (+372) 644 66 86. Admission €5.80, children €3.20. Joint ticket with the Kiek in de Kök €8.30. Bring warm clothing as the tunnel temperatures are 6 to 8 degrees.