The rocks some at the size of a house lie on the hill near Szentbékálla looking like grazing cows from far. The best-known one is called “ingókő (swaying rock), a nearly horizontal sheet of stone that wobbles if you dear to walk on it.
The stone blocks are remnants of the ancient Pannon Sea beach. Sea waves meeting the beach at an oblique angle deposited sediment in a zigzag pattern. Accumulated sediment developed a reef-like peninsula called spit. Silicic acid oozed inside and cemented components preventing wind from eroding the formations.
Later on wind-blown sediment polished the rocks. Water oozing inside and freezing as well as fluctuation of temperature fractured them into smaller individual pieces. Ingókő is an example for having just a few points to contact the rock below that used to form one piece with it. Erosion is still ongoing today.
The rocks lie there as if giants had played pétanque. Small cavities collect rainwater where birds may drink.
Sandstone is easy to work with. For a long time huge millstones were made of it. This craft is implied by the name of a nearby village called Kővágóörs (stone cutter). Practically, it was established on a sandstone bed. There are further but less abundant and spectacular examples for the sea of rocks in other parts of Káli Basin.