I was on the south side of S.A. running errands, so I went to walk around the Mission San Jose grounds, which is operated by the National Park Service. The mission church (which is run by the San Antonio Archdiocese) is usually open to the public when not being used for services. But, since there were very few people visiting on this Monday afternoon, both front & rear entries were locked. However, I did notice the (usually locked) bell tower stairway gate was open. Hmmm. No 'keep out' signage anywhere, so ...The spiral staircase stopped part way up the tower, at the balcony level of the church. To climb to the top of the tower, they placed very steep stairs along the interior walls, roughly hewn out of long sections of tree trunks. The railings (which were added later) made it a bit more secure to climb. Those stairs led to the church roof (yeah, I did) and the top (plywood prevented access ). I'm guessing this area isn't part of the normal tour.