The Chocolate Hills is a geological formation in Bohol Province, Philippines. There are at least 1,260 hills but there may be as many as 1,776 hills spread over an area of more than 50 square kilometres (20 sq mi). They are covered in green grass that turns brown (like chocolate) during the dry season, hence the name.
The Chocolate Hills is a famous tourist attraction of Bohol. They are featured in the provincial flag and seal to symbolize the abundance of natural attractions in the province. They are in the Philippine Tourism Authority's list of tourist destinations in the Philippines; they have been declared the country's third National Geological Monument and proposed for inclusion in the UNESCO World Heritage List.
Links: en.wikipedia.org, www.atlasobscura.com