The Puerto Princesa Subterranean River National Park is one of the most distinguished protected areas of the Philippines. It is located some 360 miles southwest of Manila, the country’s political and economic capital. It was established as a National Park in 1971primarily to protect and preserve the intact old growth forest, interesting wildlife, pristine white sand beaches, unspoiled natural beauty and one of the most impressive caves systems in the world.
The Park features a spectacular limestone or karst mountain landscape. It contains an 8.2 km long underground river that flows directly to the sea. The lower half of the river is brackish and subject to the oceans tide. A subterranean river flowing directly into the sea and the associated tidal influence makes it the most unique natural phenomenon of its type to exist. The presence of 11 minerals, scientifically and aesthetically unique speleothems, and a 20 million year old Serenia fossil embedded in the walls of the cave justifies the declaration of the Puerto Princesa Underground River as one of the New 7 Wonders of Nature.
ARTICLE LIFTED from:http://www.puerto-undergroundriver.com/