The Moeraki Boulders are a must see item on any family's trip down the lower South Island. These huge round boulders are strewn along the beach at Moeraki, some 40 kilmetres south of Oamaru on State Highway 1. It is a five-minutes walk from the car park to the boulders.
The boulders were embedded in the soft mudstone cliff until sea eroded the cliff, exposing the boulders.
The boulders are formed by the crystallisation of calcium and carbonates around charged particles, the process taking some four million years. To help children under stand, I suggest explaining how pearls are formed, as the same principle applies.
For information about the area visit us at http://www.kidsfriendlynz.com/destination/SouthIsland/oamaru.html
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