The spherical Moeraki boulders

The Moeraki boulders are unusually large, spherical stones, found on the beach Koekohe in Otago, New Zealand. Most striking in these blocks is the unusually large size. Approximately 1 / 3 of them have
diameters of 0.5 to 1 meter and the other 2 / 3 from 1.5 to 2.2 meters. Most are almost perfectly spherical.
However, the spherical Moeraki boulders are not unique. Identical spherical boulders are the so-called Koutu, located on the beach Hokianga, New Zealand and reach a diameter of 3 meters. Also on the north shore of Shag Point, 12 miles south of the point, where these are the Moeraki, similar-sized boulders Katiki.

There are also such boulders and other parts of the world, such as along Cannonball River in North Dakota (with a diameter of 3 meters) in northeastern Utah and central Wyoming (with a diameter of 4 to 6 meters).

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