Service (Offsite) – Labyrinth walk by Ostara Hollyoak July 21, 2019 10:00 am – 11:00 am Bon Secours Retreat Center 1525 Marriottsville Rd. Marriottsville, Md. 21104 Get Directions Join Channing at Bon Secours for the annual Labyrinth walk. This event is in place of our usual service at Corporate Court. See below for location.