Moeraki Boulders, New Zealand http://www.travelandtransitions.com/destinations/destination-advice/australia-south-pacific/travel-new-zealand-auckland-christchurch-wellington-the-southern-alps-and-lots-of-beautiful-nature/
These balls in the mist are Moeraki Boulders at the Koekohe Beach on the Otago coast of New Zealand. They are truly strange: gigantic (up to three meters), some almost perfectly spherical in shape, with a crystal-filled hollow interior... resembling a discarded shell, a gigantic pod waiting to hatch, or a husk that's already hatched.
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.
If you go down to Koekohe beach in New Zealand you can be sure of a big surprise. In front of you, scattered like enormous marbles from some long abandoned game between giants, are hundreds of giant spherical rocks. Or are they the egg shells of sea-born dragons? The Moeraki boulders present us with a mystery – what are they and how on earth did they get there?