Clearwater Cave system

The Clearwater Cave System (Malay: Gua Air Jernih) in Gunung Mulu National Park, Sarawak, Malaysia is believed to be one of the world's largest interconnected cave systems by volume and its 9th longest at 236.796 km (147.138 mi) (2020).^[7][8][9] The system lies mainly under the western margins of Gunung Api between the Melinau Gorge and Cave of the Winds.

Clearwater Cave System
Interior of the Clearwater Cave
Location	Gunung Mulu National Park, Sarawak[1]
Coordinates	04°03′54″N 114°49′53″E
Length	255.934 km (159.030 mi)[1]
Height variation	553.41 m (1,815.6 ft)[1]
Discovery	See list Clearwater Cave (1978) Lady's Cave (connected in 1978) Cleartop Cave (connected in 1978) Wind Cave (connected in 1988) Drunken Forest (connected in 1990) Blackrock Cave (connected in 1991) Leopard Cave (connected in 1991) Whiterock Cave (connected in 2005) [2]
Difficulty	Advanced - connection to Wind Cave[3] Intermediate - access to underground river[4]
Access	Public (Clearwater cave),[5] Restricted (underground rivers and connections)[4][3]
Show cave opened	1985[6]
Features	Top 10 longest cave passage in the world[1]
Website	Official website Mulu Caves Project website

The first exploration by speleologists was during the 1977/78 Royal Geographical Society Mulu Sarawak Expedition when 24 km (15 mi) of the cave passage were surveyed. Many expeditions have increased the explored length and will continue to do so for the foreseeable future.

See also

• List of longest caves

References

1. "Clearwater Cave". Mulu Caves Project. Archived from the original on 1 June 2017. Retrieved 29 October 2018.
2. "The Clearwater Cave System". Mulu Caves Project. Archived from the original on 24 March 2018. Retrieved 29 October 2018.
3. "Clearwater connection". Mulu National Park. Archived from the original on 15 March 2018. Retrieved 29 October 2018.
4. "Clearwater revival". Mulu National Park. Archived from the original on 15 March 2018. Retrieved 29 October 2018.
5. "Clearwater Cave and Wind Cave". Mulu National Park. Archived from the original on 20 September 2018. Retrieved 29 October 2018.
6. Yi Chuan, Shi (2010). "Gunung Mulu National Park". World Heritage Datasheet. Archived from the original on 27 October 2018. Retrieved 27 October 2018.
7. Eavis, Rob (April–May 2016). "What a Rollercoaster". Descent (249): 24–29.
8. Brown, Mark (June–July 2017). "Mulu Successes Continue". Descent (256): 36.
9. Bob Gulden (January 1, 2020). "Worlds longest caves". Geo2 Committee on Long and Deep Caves. National Speleological Society (NSS). Archived from the original on May 15, 2006. Retrieved 15 March 2020.{{cite web}}: CS1 maint: unfit URL (link)

Gill.D.W.1999. World Heritage Nomination, Gunung Mulu National Park, Sarawak, Malaysia. Forest Department Sarawak.

Sources

• Mulu Caves, Brook and Waltham (1979), Royal Geographical Society
• Caves of Mulu '80, (1981), Eavis, Royal Geographical Society
• Caves of Mulu '84, (1985), Eavis, British Cave Research Association
• Mulu Caves '88 and '89 Expeditions, (1989), Kirby, Mulu Caves Project
• Mulu Caves '91 (1991), Kirby, Mulu Caves Project