Puerto Princesa Subterranean River National Park, located on Palawan Island in the Philippines, is renowned for its stunning underground river system. A UNESCO World Heritage site, this natural wonder offers a mesmerizing cave experience with its 5-mile river that flows beneath limestone karsts.
Visitors can take a guided boat tour through the cave, marveling at its unique rock formations, stalactites, and stalagmites. The park is not only famous for its beauty but also for its rich biodiversity, making it a must-visit destination for adventure seekers and nature lovers alike.
10. Cueva del Milodón – Chile
