The Bulusan Volcano Natural Park is a 3,673-hectare (9,080-acre) protected area of rainforest surrounding Mount Bulusan in the Philippines. It was first designated as a National Park by Proclamation no. 811 on June 7, 1935. Under the National Integrated Protected Areas System (NIPAS) of 1992 managed by the Department of the Environment and Natural Resources, the park was reclassified as a Natural Park by Proc. 421 on November 27, 2000.