Watershed Properties

The Puerto Princesa Subterranean River National Park serves as an important catchment area for two major river systems in Palawan. The Cabayugan River originates from the slopes of Mount Bloomfield, flowing through fertile lowlands where it naturally irrigates paddy farms before disappearing beneath Mount St. Paul, where it transforms into the renowned Underground River. This unique hydrological feature highlights the close relationship between the park’s surface and subterranean water systems.

The park also supports the Babuyan River, which stretches approximately 54 kilometers, making it the longest river in Palawan. Together, these river systems play a crucial role in sustaining local ecosystems and communities by providing water for agriculture, domestic use, and wildlife, while reinforcing the park’s importance in watershed protection and environmental conservation.