This photo had me remembering about this thread. From https://philippines.knoji.com/chocolate-hills-a-natural-wonder/
Chocolate Hills is located in Bohol,Philippines, is a cone-shaped hills which are symmetrical. However, from all over the hill, there is the highest hill with a height of almost 400 meters. Chocolate Hills consist of 1,268 hills, covered by grasses, with the type of grass that is hard. It is a very interesting tour for all seasons but best in summertime, because one can see its color for its name. It was an amazing sight. My last visit was summer of 2002.
If one visits the Philippines, a time in Chocolate Hills in Bohol, one can see the origin for the conical form of the Chocolate Hills as described in popular terms on the bronze plaque at the viewing deck in Carmen, Bohol. This plaque states that they are eroded formations of a type of marine limestone that sits on top of hardened clay.
