From San Francisco Bay Bridge or San Rafael/Richmond Bridge:
Take Highway 580 toward Hayward and then Highway 24 toward Walnut Creek. Once through the Caldecott Tunnel, take the third exit, which will be marked Orinda/Moraga. Turn right and follow Moraga Way about five miles. At the Chevron Station in Moraga, turn left onto Moraga Road, then right onto Saint Mary's Road. The College is about one mile farther on the right.
From Walnut Creek/Highway 680:
Take Highway 24 west (toward Oakland) to the Central Lafayette exit. Go right and around under freeway, then right onto Mt. Diablo Blvd. Get into the left lane, go one block, and then left onto Moraga Road. Go left onto Saint Mary's Road about four miles; the College will be on the left.