The Moeraki Boulders

moerakiboulders

You’ve probably heard of the Moeraki Boulders, those strangely spherical rocks on that beach somewhere in New Zealand.

moerakiboulders

Well that beach is called Koekohe, and can be found on the South Island’s east coast, between Dunedin and Oamaru. The boulders are absolutely worth seeing, but be warned: they attract a lot of tourists.

moerakiboulders

When you turn off State Highway 1 at Koekohe Beach, you’ll see an enormous sign pointing left towards the Moeraki Boulders. It’s a trap. It leads to a crowded café and giftshop, and a stairway to the boulders that you have to pay to go down. Instead, turn right. That road leads to the public carpark, from which you can access the boulders for free.

moerakiboulders

The more you look at the Moeraki Boulders, the more they resemble enormous alien eggs.

moerakiboulders

The worrying thing is that some of them look like they’ve already had things hatch out of them.

moerakiboulders

Here, you can see the cliff giving birth to one.

moerakiboulders

The Moeraki Boulders are made of mudstone, formed millions of years ago on the ocean floor. As the cliff erodes, more and more are exposed.

moerakiboulders

The scientific term for them, and rocks like them, is septarian concretions.

moerakiboulders

The Moeraki Boulders contain calcite crystals, as well as quartz and sometimes dolomite.

moeraki boulders

They’re not unique to Koekohe, or even New Zealand.

moeraki boulders

You can see similar boulders in a seemingly more bizarre and even more magical setting in a forest near Taihape. They’re called the Whitecliffs Boulders. I’ll show you the pictures I took there another time.

moeraki boulders

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