The Moeraki Boulders are large spherical boulders on Koekohe Beach near Moeraki. These boulders are septarian concretions that were formed in ancient sea floor sediments around 60 million years ago. These boulders were formed over time by lime minerals in the sea accumulating around either a fossil shell, bone fragment or a piece of wood and growing into perfectly spherical shapes of up to three meters in diameter.
The original mudstone seabed has during time been uplifted to form coastal cliffs and the boulders are now exposed through shoreline erosion from the coastal cliffs and are scattered across the beaches near Moeraki. Further erosion exposes a network of veins in the boulders and eventually they break into pieces. There are over 50 boulders on the beach and they can be up to 3 meters wide.
The Moeraki Boulders Café, Bar and Gift Shop is located close to the boulders and has wonderful ocean views. Here you will find a range of food, coffee, souvenirs, jewellery and clothing, much of it locally crafted.
Visit Waitaki Oamaru is part of the Visit New Zealand wide website