Bohol's "main attraction", these unique mound-shaped hills are scattered by the hundreds on the island's central plain, concentrated near the town of Carmen.

The Chocolate Hills is a rolling terrain of cone-shaped hills that are almost symmetrical are actually made of limestone that are naturally covered with grass. There are estimated to be at least 1,700 mounds and hills.The domes vary in sizes from 30 to 50 meters (98 to 160 ft) high with the largest being 120 metres (390 ft) in height.

A romantic legend tells of a giant named Arogo who was extremely powerful and youthful. Arogo fell in love with Aloya, who was a simple mortal. Aloya's death caused Arogo much pain and misery, and in his sorrow he could not stop crying. When his tears dried, the Chocolate Hills were formed.