The main Jesuit church is easy to visit, as it still operates as a city church and opens onto a delightful little public square. The rest of the complex is more difficult to see, which is odd as the site is on the UNESCO World Heritage list. However, I was there in August (i.e., mid-winter); maybe there are more organized tours in the summer. To see the chapel, I just entered a side door and asked at the administration if I could take a look. The person at the desk gave me a brochure, said the fee was a voluntary donation, and pointed me to the chapel. Absolutely beautiful, and well worth a visit. I wish I had been able to go on an organized tour and see more of the complex.
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