Mission San José
Belica Dawkins I visited on a Sunday and the entrance was free. I saw the Mission, museum, the cemetery and there are a lot of knowledgeable volunteers around that joyfully share their knowledge. I recommend you to visit.
(510) 791-8555
Google map: https://www.google.com/maps/place/?q=place_id:ChIJJePrwEG_j4ARLVi13O4niCg