Hemmed in by impenetrable wilderness, it housed the colony’s hardest criminals, including the notorious cannibal Alexander Pearce.
A team of ten archaeologists recently finished a three week dig on the island.
Parks and Wildlife archaeologist, Jody Steele, says one of the most interesting finds was graffiti etched into the bricks of the one metre by two metre cells.
“We’re hoping we can pull the convict records for the island – the men who were actually stationed out on the island – and cross reference them,” he she said.
“Hopefully get some evidence as to who was in the cells at the time, so we might have a clearer idea about who was being locked up and when.”
A pile of black swan egg shells found in a fireplace, reveal it was a popular menu item.