Have you ever attended the San Xavier Festival?
"The San Xavier Festival is held the evening of the Friday after Easter and features a torch-light parade of Tohono O’odham and Yaqui tribal members."
That festival is truly spectacular. I still remember the first time I attended, many decades back, because (among many things, of course) that was my first encounter with fry bread, and a few other tasty treats.
So many fond memories of our years in Tucson, but San Xavier del Bac is right up there at the top.