The Formations
The formation began around 60 million to 160 million years ago when pressure caused cracks in the rock. The cracks can be seen going in three different directions: north-northeast, east-northeast and north-northwest.
Over time the ocean and sand has eroded the areas between the cracks giving the tiled appearance we see today.
There are two types of rock formations.
The pan formations are concave depressions. You will find these further away from the shoreline which means that it dries during low tide. This reduces the salt crystals developing and the pans erode more quickly than the joint leaving the concave depressions.