On Gaol Road, Off Port Road, Near the City.

They are having a special "Open Day" on Sunday 24th May from 10am - 4pm. There will be Ghost talks and tours of the Gaol.
Special entrance price of $2 per person.

Also the Police Barracks next to it is going to be open to the public on this day.

The very kind volunteer at the Gaol told me about this when I went yesterday.

Have fun!.