Free entry of Ganzfeld and Skyspace every Sunday

Every Sunday we offer free guided tours of our underground light installations Ganzfeld - Double Vision and Skyspace - The Color Beneath, by the world-renowned American artist James Turrell. The tours last approx. 15-20 minutes and start every half hour between 11 AM and 4 PM. There is no pre-booking available. If the tours are full you can talk to the guide outside the installation and reserve any available spots for the following tours. Please see more information on the blackboard outside the entrance during opening hours.    

• No pre-booking. 
• Talk to the guide outside the installation about availabilty.
• Guided tours are held approx. every whole and half hour between 11AM - 4PM, with the exception of 1:30-2PM. 
• Children under the age of 10 must be accompanied by adults. One adult per child. 
• You may only enter the installation by joining a guided tour. 
• Maximum 8 guests on each tour.
• Meet up minimum five minutes before the tour begins. Failure to do so may result in the spots being given away.
• Some days there is only one guide working. If no one is outside during opening hours, it is because the guide is inside, giving a tour. Please see the list outside for available times.