About 1 km off of Coogee Beach is a collection of rocks about 150 metres long and 50 metres wide. At high tide one can see these rocks poking out of the sea and as the tide goes down they get more pronounced. This is Wedding Cake Island.
As you descend you will see the reef drop off in shelves at 5m, 8m, 15m, 18m, and the rock sand line is at approximately 22m. The main wall is at the 15m mark and this is where heaps of sea squirts and several small gorgonians make their home. Along the wall you can also find overhangs and caves that provide shelter to the aquatic life.
Wobbegongs can be found here along with lots of other fishlife including yellow-banded seaperch, old wife, snapper, bream, the esteemed blue groper, combfish, six-spined leatherjacket, rainbow runners, kingfish, and schools of luderick that flock to the shallower waters. If you're lucky you may get to see the magnificent eastern blue devil or cuttlefish. There are also many species of nudibranch.