Fr. Ron Rohlheiser retreat is Full as of April 5, 2017 by Doug Boyer | Apr 5, 2017 | Announcements | Fr. Ron Rohlheiser, OMI is one popular guy! As of today, we are completely full for lodging. If you would like to be added to a waiting list, please call us at 800-779-7909. There is also an option to attend as a commuter.