The old aquariums under construction at the foot of the breakwater, Warrnambool harbour, Victoria. Built in 1970 and opened in 1971, the Warrnambool Aquarium was popular public attraction until it closed in 1998. You can see the passageway leading into the aquarium in the foreground. Pic from approximately 1970.
Copyright © Unknown
More info here.
If you would love to visit places like this, but have mobility issues, you might like to visit the Overlander Mobility website.