Flintstone rocks

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Rounding a bend, you'll be surprised to see huge grey boulders lying scattered as if a giant having a fit tossed them. They are tonalites, formed 80 million years ago when magma penetrated the earth's crust here and solidified.

Evidence of the island's earliest inhabitants is found on the granite rocks of Arikok. Protected behind a fence is a rock wall beautified by petrographs. Painted by Caquetios, the last pre-Hispanic inhabitants, the zoomorphic drawings are at least 1,000 years old. Created mainly from organic materials, they are eroding from the inside, making carbon dating impossible.