Bimmapor Rock Formation

Bimmapor Rock Formation is a natural limestone rock formation located in Barangay Ponggo, Nagtipunan, Quirino, Philippines. Situated along the Cagayan River, it is known for its towering karst cliffs, stratified rock walls and scenic river valley setting. The site is a notable eco-tourism attraction in Quirino, offering views of the river, surrounding forests and distinctive geological features shaped by natural erosion.

Visitors can expect a large limestone rock formation rising beside the Cagayan River surrounded by forested hills and river valley scenery. The area features exposed stratified rock faces, boulders and viewpoints overlooking the river. Access typically involves a short trek and boat or river crossing depending on water level. Visitors can explore the base of the formation, view the cliffs up close, take photographs and enjoy the natural riverside environment.