Queensland Maritime Museum

Volunteers cleared three metres of silt from a dry dock to float HMAS Diamantina into her permanent berth — and that spirit hasn't left. The South Brisbane graving dock now holds the world's last surviving WWII River-class frigate alongside a 1925 steam tug, a pearling lugger, and Jessica Watson's yacht. More than 150 volunteers, aged 18 to 91, keep it running.