Modern Australia owes almost everything to the sea, so it’s not surprising that there’s a museum dedicated to ships, from Aboriginal vessels to submarines. You’ll find ships’ logs and things to pull and tug at. Docked in the harbor are several ships and launches, including an Australian navy destroyer, the Vampire, an Oberon Class submarine, and a replica of the Endeavour, the ship Captain James Cook commanded when he laid claim to Australia. You can clamber over many of them.