HMCS Victoria a Potent Warship

The RCN's HMCS Victoria, left, at home in Esquimalt Harbour. Victoria is one of four diesel-electric submarines in the navy, and the only one that has sunk a ship during an exercise. A very persuasive argument in favour of an effective submarine force.
For a glimpse inside this modern SSK, here is a relatively recent YouTube item that provides some glimpses inside the boat.