South Channel Fort - Port Phillip Bay - Above ground, under ground & underwater tour

Come on a quick tour above ground where birds nest, underground into the keep where there are tunnels and store rooms, living areas and control rooms. then hit the water for a nice dive 6-10m deep with plenty of life to look at.
BACKROUND INFORMATION ON THE FORT
South Channel Fort is a unique and highly significant 19th Century
artificial island. Built during the 1880s, it is part of the strategic defence network of Port Phillip. The island contains gun emplacements, a labyrinth of underground passages and magnificent panoramic views over Port Phillip. It is also a breeding site for the White-faced Storm-Petrel and other important birdlife.