| Year | Season | Location | Topic |
| 2006-7 | Winter | Shantivanam Ashram, India | Pilgrimage, gallery |
| 2007 | Fall | Quaker Center, Ben Lomond | Visioning |
| 2008 | Fall | Quaker Center, Ben Lomond | "Stages of the Spiritual Life," gallery |
| 2009 | Spring | Mission San Antonio de Padua | Frs Cyprian, Bruno, gallery |
| 2010 | Spring | Mission San Antonio de Padua | Mystics |
| 2010 | Fall | Quaker Cednter, Ben Lomond | |
| 2012 | Fall | Mount Madonna Center | |
| 2013 | Spring | St Francis Retreat Center | |
| 2013 | Fall | Mount Madonna Center | Flyer |
| 2014 | Winter | New Camaldoli Hermitage, Big Sur | One day retreat, Flyer: "Mind, Body, Spirit" |
| 2014 | Spring | Villa Maria del Mar | Fr Cyprian, re: Bede Griffiths "River of Compassion" Flyer |
| 2014 | Fall | New Camaldoli Hermitage, Big Sur | One day retreat |
| 2015 | Spring | St Francis Retreat Center | |
| 2015 | Fall | New Camaldoli Hermitage, Big Sur | One day retreat |
| 2016 | Winter | Santa Cruz Zen Center | "Buddhist-Christian Day of Silence & Dialog," |
| 2016 | Spring | Villa Maria del Mar |