Zurich Rooftop Day

Things to know about the Zurich Rooftop Day [5]

Several rooftops and gardens in Zurich are organizing parties/activities on the same day
You create your own program (ex: open-air cinema, a round of yoga, a ping-pong tournament, a concert, a reading, a photo exhibition, a barbecue,...)
Your event will be publicly publicized on Ron Orp and in the newsletter the day before the Rooftop Day.
Even if your event is made public, you decide how many people will attend your event. You can also confidently keep a guest list that you have to sign up for and close the door if it gets too crowded.
Just as with the number of people you decide yourself when your event begins and when it ends. Remember: You're the organizer, not Ron Orp.
Participation is free.