Pictured below, more images from around the historic buildings at the quarantine station.
Parks Victoria has a nice PDF explaining a little about the attractions here.
Point Nepean is located at the entrance to Port Phillip Bay and contains old military fortifications dating back to the 1880s.
Amongst the many features at Point Nepean are the old gun emplacements which are serviced by a series of interesting tunnels and purpose built rooms buried into the hill.
The underground atmosphere is enhanced by audio loops continuously playing the eerie sounds of a military yesteryear.