Entering the Quigley A Marine Corps officer candidate breaks the surface of the Quigley, an obstacle used in training at the Officer Candidates School on Marine Corps Base Quantico, Va., March 15, 2016. Marine Corps photo by Cpl. Patrick H. Owens SHARE IMAGE: Download Image: Full Size (1.43 MB) Photo By: Cpl. Patrick Owens VIRIN: 160324-D-HV319-001.JPG Photo Gallery