Northern Sierra Madre Natural Park

Northern Sierra Madre Natural Park spans over 357,000 hectares of dense tropical rainforest, rugged mountains, and a coastline facing the Philippine Sea in the province of Isabela on Luzon Island. Encompassing much of the Sierra Madre mountain range, the park features some of the country's richest biodiversity, including rare and endemic species such as the Philippine Eagle, the Sierra Madre shrew-mouse, and various unique orchids and flora. The park’s geography is characterized by steep slopes, deep river valleys, and untamed wilderness, providing critical habitat for endangered wildlife and vital watershed functions protecting nearby communities. Historically, the area has been home to indigenous peoples who depend on the forest for subsistence and cultural heritage. Outdoor recreation in the park is limited but rewarding for visitors seeking remote jungle trekking, wildlife watching, birding, and exploring untouched riverine ecosystems. The park contains several rivers and waterfalls, with natural hot springs and cave systems adding to its adventure appeal. Access is often challenging due to rugged terrain and minimal infrastructure, making guided tours or local expertise essential. Conservation efforts continue to address threats such as illegal logging, mining, and poaching to preserve this vital ecological and cultural treasure. Visitors are drawn to the park’s vast wilderness experience, expansive forest canopy, and the chance to encounter some of the Philippines’ most iconic and endangered wildlife species in their natural habitat.