Manresa Jesuit Retreat House closes out its year-long 100th Anniversary Celebration with an outdoor Mass on Sunday, September 20, 2026, at 2:00 PM. The Mass will be held under a tent on the lawn near the gazebo. The Ss Peter and Paul Jesuit Church Choir will perform. A catered picnic and house tours follow. Invite family and friends to join you and be a part of this historic event at Manresa. This is an entirely FREE event, but registration is requested to help us plan. Register by emailing [email protected].