I stopped briefly at the Victoria & Alfred Waterfront today, to use one of the parking garages there.
This is the Robinson Dry Dock in the so-called Alfred Basin in the Waterfront, and it is the oldest operating dry dock of its kind in the world. It dates back to 1882. The foundation stone for the dock was laid by Prince Alfred, second son of Queen Victoria. Named after Governor Sir Hercules Robinson, it was used to repair over 300 ships during World War II.
Ships are typically dry-docked every five years for a special survey, but may also be dry-docked for inspections, maintenance, and repairs, in between.