A park and grab at the Mount Crosby Weir.
Should be a easy find at the end of the guard rail.
You will need to bring your own ink.
The Mount Crosby Weir is a weir on the Brisbane River at Mount Crosby in South East Queensland, Australia. The project was instigated by John Petrie at the end of the 19th century. The town of Brisbane was expanding and seeking more reliable sources of drinking water than Enoggera Dam and Gold Creek Dam could provide.