HMCS Onondaga - A Canadian Navy decommissioned diesel-electric Oberon class sub lies alongside the museum at Pointe-la-Pere and a detailed technical audio guide takes you through an opening in the stern for a claustrophobic inducing stumble though the narrow and contorted passageway, through multiple watertight doors, through the engine room, control room, galley, sonar room, officers and enlisted men's mess, to the forward torpedo room and a hatch to the outside. Half an hour is stressful.... how about a 3 month patrol!