With an area of 544 sq km the Mulu National Park is Sarawak's largest national park. Within its boundaries lies one of the most extensive and spectacular limestone cave systems on earth, as well as the second highest mountain peak in the state. Gunung Mulu's caves are extraordinary - 295 km of caves are explored. The park contains 17 vegetation zones, exhibiting some 3500 species of vascular plants. The park contains 109 palm species in 20 genera. Travelling overland from Miri to Mulu requires a combination of bus and boat and takes several hours. The flight by contrast takes only 20 minutes. Accomodation in the Park is comfortable and inexpensive. The Pinnacles are impressive limestone rock formation with the shape of shards pointing towards the sky.