Biodiversity Data:
Close this search box.
Close this search box.
Close this search box.

ASEAN Heritage Parks

Gunung Mulu National Park

This World Heritage Site has the 2nd highest mountain peak in Sarawak, and boasts of having its tropical karsts as the most studied in the world. Gunung Mulu National Park also has very high biodiversity, and has one of the most extensive limestone cave systems on earth. The gigantic limestone caves serve as the roosting areas of millions of swiftlets and bats.

The Park covers 52,865 hectares; 100 km inland from the coastal port of Miri in Sarawak, Malaysia.

Photo Gallery

100 km inland from Miri Division in Sarawak
528.65 sq km
Date declared as an AHP
29 November 1984, at the 2nd ASEAN Ministerial Meeting, Bangkok, Thailand
Other international designations
World Heritage Site
Habitat types
Contact Information

Victor Luna Anak Amin
AHP Manager
Tel.: +6082629304
Fax: +6082629450

Unique FloraQuercus subsericea; Rhododenron and Vaccinium species; insectivorous pitcher plants (Nepenthes lowii, N. tentaculata and N. muluensis); slipper orchid (Paphiopedilum sanderianum); one-leaf plant (Monophyllae pendulum) in mossy forest.

Unique Fauna: Free-tailed bats (Nyctinomops sp); wrinkled-lipped bats (Charrephon plicata); Savi’ pygmy shrew (Suncus etruscus), the smallest mammal in the world; wrinkled hornbill (Rhyticeros corrugates); regal python (Phyton reticularis); Philautus sp., a frog that breeds only in the fluid of the pitcher plant; Bornean gibbon (Hylobatus muellen); Bay cat (Catapuma badia); Clouded leopard (Neofelis nebulosa); Rhinoceros hornbill (Buceros rhinoceros).

Habitat Types: Varied geological formations dominated by a large sandstone mountain and two smaller limestone mountains; limestone scree forest; limestone cliff; upper mountain limestone forest; tropical heath; peat swamp; riparian forests; heath, kerangas and mixed dipterocarp forest; mossy and stunted upper montane forest.

Apart from the steep ridges, escarpments and karsts, visitors can explore the limestone cave systems composed of 19 major caves and over 89 kilometers of huge cave passages, such as:

  • Sarawak Chamber – can accommodate 8 Boeing 747 aircrafts lined up nose to tail
  • Clearwater Cave System – the longest cave system in the world
  • Deer Cave – considered the world’s largest natural cave passage
  • Good Luck Cave – has the world’s largest natural chamber within a cave
  • Gua Ajaib – the most beautiful cave system

Explore Other Parks

Viet Nam

Chu Mom Ray National Park

The Park is named after Chu Mom Ray, which, at 1,773 meters, is the highest mountain in the region. Chu Mom Ray NationalPark is adjacent to Virachey National Park in

Read More »

Endau-Rompin Johor National Park

Established in 1993, the 48,905-ha Endau-Rompin (Johor) National Park is the largest protected area in the southern half of Peninsular Malaysia. This ancient rainforest realm in north-eastern Johor is a

Read More »