The ex-HMCS Okanagan, ex-HMCS Onandaga, ex-HMCS Ojibwa + the former HMS Olympus, never commissioned but used for training (she is the one with the smaller sonar-dome).
Left to right: HMCS Onondaga, HMS Olympus, HMCS Okanagan, HMCS Ojibwa

Photo
Kier Shackleton Gigeroff - October 8th, 2007
Updated June 8th, 2008 (to show which is which)