Staff at the Old Dubbo Gaol are challenging residents and outsiders to come and search for secret bars and hideaways hidden within the gaol walls.
On February 29, those who are 18-years-old and over will have the unique opportunity to join the gaol staff for Prohibition at the Yard.
Prohibition at the Yard will be a live reenactment of 20th centuries' nationwide alcohol ban.
Prohibition was a nationwide constitutional ban on the production, importation, transportation, and sale of alcoholic beverages from 1920 to 1933.
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Although alcohol wasn't completely banned in Australia, it was in the ACT, and most of the country, including Dubbo, experienced a change in the laws like curfews.
Old Dubbo Gaol operation coordinator Julie Webster said staff were anticipating a big night.
"Come and find the secret bars and hideaways within the walls while dressed in your best 1920s attire," Ms Webster said.
"We will have several hidden bars throughout the gaol.
"There will be live swing music by Dr Crask and His Swingin' Elixir, food served by Eat Your Greens and bootlegging by Devil's Elbow Brewery.
"What better way to celebrate the start of a new decade than taking a step back in time."
Staff aren't giving away too many hints, but they have confirmed that the location of one of the bars will be in one of the gaol cells, while the entertainment and food will be set up in the courtyard.
Dubbo mayor Ben Shields said the night would be fantastic.
"It's all about having fun here at the Old Dubbo Gaol at night time in a very festive atmosphere," Cr Shields said.
Tickets to attend the event are available for purchase now. You can be purchased yours online at 123tix.