There are several amazing geological formations on the Tasman Peninsula in south eastern Tasmania. One of the most spectacular is the Tesselated Pavement, near Eaglehawk Neck.
From Wikipedia, the free encyclopedia: “A tessellated pavement is a rare erosional feature formed in flat sedimentary formations lying on some ocean shores. The pavement bears this name because the rock has fractured into polygonal blocks that resemble tiles, or tesselations. The cracks (or joints) were formed when the rock fractured through the action of stress on the Earth’s crust and subsequently were modified by sand and wave action.”