Public visitation by advance reservation, Wednesdays through Sundays, with guided tours at 10:00 a.m. and 1:30 p.m. (allow 2 hours).

Office hours are Wednesday-Sunday 9 a.m. to 5:00 p.m.

Closed Mondays, Tuesdays, Thanksgiving, Christmas and New Year's Day.

Starting June 3 through August 30 2009, we will be offering "open access" to the site. We will have a park van waiting at the Museum of the San Ramon Valley (205 Railroad Ave.) at 10 a.m., 11 a.m., 1 p.m. and 2 p.m. to bring visitors up and down from the O'Neill home. No reservations needed for this "open access". If you are planning to bring a large group, please contact the park at (925) 838-0249.