Isinulat ni Joviner M. Dumagan Source: Mercury Drug 2013 Calendar ![]() The Puerto Princesa Underground River National Park is one of the most significant protected areas of the Philippines. It is located in the mid-west coast of Palawan, some 76 kms northwest of Puerto Princesa City. The site features a spectacular limestone or karst mountain landscape with one of the most impressive cave systems in the world. It contains an 8.2 kilometer-long underground river that flows directly to the sea. |
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