This park features a spectacular limestone karst landscape with
an underground river. One of the river's distinguishing features
is that it emerges directly into the sea, and its lower portion
is subject to tidal influences. The area also represents a
significant habitat for biodiversity conservation. The site
contains a full 'mountain-to-sea' ecosystem and has some of the
most important forests in Asia. Outstanding Universal Value
Puerto-Princesa Subterranean River National Park encompasses one
of the world’s most impressive cave systems, featuring
spectacular limestone karst landscapes, pristine natural beauty,
and intact old-growth forests and distinctive wildlife. It is
located in the south-western part of the Philippine Archipelago
on the mid western coast of Palawan, approximately 76 km
northwest of Puerto Princesa and 360 km southwest of Manila. The
property, comprising an area of approximately 5,753ha, contains
an 8.2km long underground river. The highlight of this
subterranean river system is that it