They have an 11:00 am mass with choir.
Entry is free for the basilica, but $18 for the museum and old mission grounds.
Parking can be a bit of a challenge because it tends to fill up rapidly.
A few nearby places worth checking next.
I have been using it now for 3 months and it saves me so much research. Reduces the need to call and double check every time.
How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.