One of Eaglehawk Neck interesting attractions, located in the Tessellated
Pavement State Reserve, just a short walk from the car park is this unusual
geological formation, which gives the rocks the effect of being rather neatly
tiled by a giant.
The pavement appears tessellated (tiled) because the rocks forming it were
fractured by earth movements.
The fractures are in three sets. One set runs almost north, another east
north east, and the third discontinuous set north north west. It is the last two
sets that produce the tiled appearance. The flatness of the pavement is due to
initial erosion by waves carrying sand and gravel, and nearer to the cliff, to
chemical action by sea water. The rocks absorb sea water during high tide, then
dry out during low tide, causing salt crystals to grow and thereby
disintegrating the rocks. This is a process which produces shallow basins.