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Sierra Bullones, Philippines

Chocolate Hills

Bohol's mysterious brown hills 

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Were you to fly over Bohol Island in the Philippines during the dry season, you might notice what looks like thousands of chocolate kisses protruding from the terrain.

These mysterious conical mounds are known as the Chocolate Hills. There are approximately 1,268 individual hills, their heights ranging from 100 to 160 feet, though the highest is almost 400 feet high. The hills, which are almost all symmetrical, consist of grass-covered limestone and turn brown during the dry season.

Despite the abundance of hills, it is unclear how they were formed. There are multiple geological explanations ranging from oceanic volcano activity to limestone weathering. A recent theory is that an ancient volcano self-destructed and chunks of it were dispersed over the region.

Numerous legends and tales also exist to explain the Chocolate Hills. One is about a giant buffalo who came and wreaked havoc in the region, eating and destroying all the crops. As an act of vengeance, locals left out spoiled crops. When the buffalo ate them it got sick and left mounds of feces in its wake, bringing new meaning to the name "Chocolate Hills."

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