HMAS OvensLong Term Exhibition | Updated 4 weeks ago Caption: The HMAS Ovens. Image copyright Western Australian Museum The Oberon class Submarine HMAS Ovens is an authentic Cold War-era vessel situated on Fremantle's historic World War Two submarine slipway. Visitors can find out what life is like aboard a submarine and immerse themselves in Fremantle's secret wartime history. Tours reveal intimate details about living and serving aboard the 89 metre long vessel. Amongst controls, sensors, tactical equipment and torpedoes, 63 people lived and served aboard the vessel in extremely cramped conditions. Guided tours of the submarine leave every half hour from 10am - 3.30pm from the WA Maritime Museum. The guided tours take approximately one hour. This exhibit serves as a living memorial to submariners and those who gave their lives while serving from Fremantle during World War Two. Bookings Bookings can be made at the front desk at the WA Maritime Museum or by calling 1300 134 081. Bookings are advised as tours are subject to availability. Please call ahead if you have a larger group or if you are concerned about weather conditions. Tours can be cancelled because of severe weather conditions. This includes high winds, thunderstorms, and high temperatures. Tickets will be refunded in such events. Health and Safety information The tour includes climbing 9 metre high scaffolding stairs, steeply inclined ladders and bending through narrow hatchways. A reasonable level of fitness, freedom from significant injuries, and the ability to climb independently (without walking aids) is required. Please see the Conditions of Entry and the Submarine HMAS Ovens FAQs. Age Restrictions For safety reasons, children must be over the age of five and at least 100 centimetres tall to participate on the submarine tour. WA Maritime Museum View the discussion thread.