Moeraki Boulders Geological Formation

These unusually large and spherical boulders, some measuring up to 2 meters in diameter, are scattered along a 50-meter stretch of Koekohe Beach. Formed over 4 million years ago as calcium carbonate accumulated around organic matter on the ancient sea floor, the boulders have been exposed by coastal erosion. The best photography light occurs during the golden hours, when the smooth gray stones contrast dramatically against the dark volcanic sand and incoming waves.

Access is via a short walking track from the parking area off State Highway 1, about 40km north of Dunedin. Low tide provides the best access and viewing opportunities. The site can get busy with tour buses mid-morning through afternoon, so early morning or late afternoon visits offer more solitude. The walk from parking is less than 10 minutes over relatively flat terrain.

Giant spherical boulders scattered on Otago beach