The official OPA SI PASS is an admission ticket for the monumental complex in Siena. It allows you to visit most of the sights on the cathedral grounds.
There are several arguments in favour of the OPA SI PASS:
Free admission to almost all sights in the cathedral grounds (except the Himmelspforte).
The ticket is valid for three days. You can therefore visit the monumental complex several times. However, each location on the site can only be visited once.
Your ticket is already paid for before you set off.
Interesting audio guide included (as an app on the phone).
Free cancellation up to 24 hours before departure (when booking via GetYourGuide).
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