Moeraki boulders, New Zealand

The Māori believe them to be eel baskets, others say they are hooligan’s gallstones or the bowling balls of giants. Whatever these perfect spherical boulders are, they are certainly worth a look.

The giant marbles are essentially nature’s version of hollowed concrete balls, forming deep under the sea in mud and clay. Incredibly, some have grown to be seven feet wide and they are believed to be at least 50 million years old.

The Moeraki boulders lie scattered across a stretch of KoeKohe Beach in New Zealand and have intrigued people for centuries. Visit them at sunset for a mystical experience.