Puerto Princesa Underground River, The Last Frontier
Puerto Princesa Underground River in Palawan, Philippines made it to the official list of the New 7 Wonders of Nature . The competition is based on voting results and thus it was confirmed as part of the official list next to Jeju Island in South Korea. The Puerto Princesa Subterranean River National Park where the Underground River is located is one of the main tourist spot in the Philippines. It is also an important and protected place because it is considered as one of the last frontier in the Philippine Island. Puerto Princesa Underground River consisted is a very complex cave system that has an amazing karst or limestone landscape. The river flows through the sea and associated with the tidal influence that makes it a considerable natural occurrence. Among the scientific values that can be found in the Puerto Princesa Underground River are mineral, egg shape rock formations, crystals and 20 million year old fossils like the Miocene Serenia. Aside from the natural beauty of Puerto