Princess Royal Fortress Military Museum is Australia’s first federal fortress and has a range of attractions to entertain you. The views of King George Sound and Princess Royal Harbour are a highlight. Explore the restored 1893 fortress on foot. Discover how the soldiers kept the enemy out of the port. Visit the commanding officer’s house for views across the bays and up to the Porongurup Ranges. Be amazed by the anti-submarine weapon system and the torpedoes used by submarines. Visit the kitchen site quarter masters officer’s residence and married quarters to imagine how soldiers lived.