It would definitely be a matter of interest for the readers to know about the underground rivers. When we say Underground River it means a river that flows or runs beneath the ground surface which may be wholly or partly. This kind of rivers flow through the cave systems and are all natural. You can find the underground rivers which are man made. These are made by covering over the river or by diverting the flow of the river with the help of culverts. This is done normally for the development in urban areas. One example of man made underground rivers is Fleet River in London.
ABOUT PUERTO PRINCESA
Among the number of natural underground rivers, there is a very famous Puerto Princesa River which has been declared National Park. Puerto Princesa is located in the city of Puerto Princesa which is the capital of Palawan Province in Philippines. When you reach the Island, at the northern coast of the Island you will find the national park which is in the Saint Paul Mountain Range. About 90% of the park consists of the sharp, karst limestone ridges. It is also known with the name St. Paul Underground River. This place has been among the 28 finalists which were selected for the New Seven Wonders of Nature competition. The part of the river which is underground is about 8.2 kilometers. This river enters directly into the South China Sea but before entering the sea it flows through a cave. The cave is about 120m wide and 60m high. This is the distinguishing feature of Puerto Princesa river. This was the longest underground river in the world till 2007 but this distinction came to end by the discovery of an underground river in Mexico. This site is a full combination of mountains and sea ecosystem. It is a World Heritage Site declared by UNESCO.
BEAUTY OF PUERTO PRINCESA PARK
The landscape of the park is based upon the limestone karst mountains. This park has some most important forests of Asia. There are thirteen types of forests in Asia out of which eight are in the Puerto Princesa National Park. This is a huge formation of forests. The eight forest types found here are named forest over limestone soil, forest over ultramafic soil, montane forest, freshwater swamp forest, mangrove forest, lowland evergreen rainforest, riverine forest and beach forest. You will find 800 plant species in the park.
Same is the case with birds. Puerto Princesa is located in the Palawan Island. There are about 252 bird species found on the island out of which 165 are recorded in the Puerto Princesa Park. There are about 15 bird species which are endemic. Birds like Blue napped parrot, Tabon scrub fowl, Hill myna and White breasted eagle are seen most in the park. When you enter the cave you find nine species of bats, two species of swiftlets and whip spider. When you come to the coastal areas of the Puerto Princesa National Park you find Sea cow and Hawksbill sea turtle.
If you want to have unique and adventurous experience in life then this could be an ideal site to fulfill your wish. If you want, that you must, to visit the river in the cave then you can hire boats for this marvelous experience.