Pinacanauan River

Pinacanauan River is a major tributary of the Cagayan River flowing through Penablanca in Cagayan Province, northern Luzon, Philippines. Located within the Peñablanca Protected Landscape and Seascape, it is known for its clear waters, limestone cliffs and forested banks. The river serves as the main water access to Callao Cave and other caves, and is a center for eco-tourism activities such as boating and rafting near Tuguegarao City.

Visitors can expect a scenic river flanked by limestone karst cliffs, forested banks and clear to greenish waters within the Peñablanca Protected Landscape and Seascape. The main visitor area is the river wharf in Penablanca where motorized boats and rafts depart. The river is the primary route to Callao Cave and other caves, offering views of rock formations, riverside vegetation and local riverside communities. Activities are centered on boat rides, rafting and sightseeing.

The river is central to the life and livelihood of communities in Penablanca and is part of the Peñablanca Protected Landscape and Seascape, a protected area recognized for its natural and eco-tourism value. It serves as a traditional transport route and supports local tourism centered on the cave system.