The Moeraki Boulders are a big attraction, found on Koekohe Beach near Moeraki on New Zealand's coast. The huge, gray, spherical stones formed in sediment on the sea floor 60 million years ago and were revealed by shoreline erosion. Or, the local Maori perspective, they are the remains of calabashes , kumaras (sweet potatoes) and eel baskets that washed ashore when the legendary canoe Araiteuru was wrecked. The boulders, some of which stand alone and some in clusters, can weigh several tons