Opening hours: May - Oct, Th - Su, 10 am - 8 pm (Tour starts at every Hour)
Reservation-Hotline: +43 1 4000-3033 (all year) Mo - Fr 7:30 am - 4:30 pm
For the Third Man Sewer-Tour a reservation is required. Book online. You will receive your personal reservation code by e-mail and text messaging.