The Mainit Hot Springs Protected Landscape is a protected landscape area located in the province of Compostela Valley on the island of Mindanao in the Philippines. It preserves the sulfuric hot springs and surrounding forest in Nabunturan municipality which also contains the headwaters of the Manat River, a source of water supply for surrounding villages. First declared a national park in 1957 by virtue of Proclamation No. 466 by President Carlos P.