The Mystery of Cano Island’s Spherical Stones


Just a short trip from Kura Design Villas, lies one of the world’s most magical islands. Overgrown, shrouded in mist, and full of wildlife, Cano Island is an absolute must see for lovers of nature, beauty, and mystery.

Yes we said mystery.1

Whispers of pirates, treasure, and ancient tribes float about the island piquing the interest of locals and tourists alike. One of the most fascinating mysteries of Cano Island is the perfectly spherical stones scattered about its forests. The granodiorite spheres range in size from 2cm to 2m in diameter and some weigh up to 16 tons.

The spherical stones, which can be found all over the Diquis region of Costa Rica, were discovered in the 1930s by the United Fruit Company during their search for banana plantation property on the Pacific coast. They uncovered the stones while digging up the land, and scientist began investigating them shortly after.


The stones were crafted by the ancient Diquis tribes and- with a spherical shape that is 96% perfect- display an almost supernatural geometrical quality. They date all the way back to the year 400 BCE and scientists are still unsure of the methods used to achieve their near-perfect spherical shape. Certain archeologists claim they were carved with magical potions that could soften even the toughest stone while others believe they used extreme temperatures to shape the rock.

Unfortunately, the Diquis tribe went extinct long ago leaving no one to pass on the story behind the stones. Some speculate they were used to mark grave sites. Others think they were were used as status symbols, and certain archeologists even think they were used to mimic constellations in the sky above.













There are also many myths surrounding the contents of the stones. The banana farmers believed they contained hidden treasure. Others thought a single coffee bean was encrusted in their centre and several stones have been blasted open in an attempt to unveil the treasures within. So far nothing has been discovered at their stoney centres.

Since their discovery, several of the stones have been relocated to museums where scientists can continue to study the secrets of the ancient Diquis tribe.

Take any pictures next to the stones on your trip to Cano Island? Post them on our Facebook page!

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