The Viengxay caves in

Houaphanh Province Houaphanh province ( Laotian: ຫົວພັນ ; Romanization of Lao: ''Houaphan'') is a province in eastern Laos. Its capital is Xam Neua. Houaphanh province covers an area of . The province is bordered by Vietnam to the north, east, and s ...

of north-eastern

Laos Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...

are an extensive network of caves in

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

mountains. Four-hundred eighty of these caves were used by the

Pathet Lao The Pathet Lao ( lo, ປະເທດລາວ, translit=Pa thēt Lāo, translation=Lao Nation), officially the Lao People's Liberation Army, was a communist political movement and organization in Laos, formed in the mid-20th century. The gro ...

during the

Second Indochina War The Vietnam War (also known by other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam an ...

to shelter from American bombardment. Up to 23,000 people lived in the caves, which contained a hospital, a school, Pathet Lao offices, bakeries, shops, and even a theatre. The area was home to the communist forces, who were fighting the royalist forces, based in Vientiane. The caves were used for living and working in because the

U. S. Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...

was bombing the area so heavily. Locals say that farmers had to farm at night to avoid bombing raids. Viengxay served as a base for the communist forces (and holding facility for captured US servicemen) because it was close to the Vietnamese border for logistical and political support. The Lao government intends to promote the caves as a tourism destination, similar to the

Củ Chi tunnels The tunnels of Củ Chi are an immense network of connecting tunnels located in the Củ Chi District of Ho Chi Minh City (Saigon), Vietnam, and are part of a much larger network of tunnels that underlie much of the country. The Củ Chi tunnel ...

near

Ho Chi Minh City , population_density_km2 = 4,292 , population_density_metro_km2 = 697.2 , population_demonym = Saigonese , blank_name = GRP (Nominal) , blank_info = 2019 , blank1_name = – Total , blank1_ ...

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

and the

Killing Fields The Killing Fields ( km, វាលពិឃាត, ) are a number of sites in Cambodia where collectively more than one million people were killed and buried by the Khmer Rouge regime (the Communist Party of Kampuchea) during its rule of t ...

Memorial A memorial is an object or place which serves as a focus for the memory or the commemoration of something, usually an influential, deceased person or a historical, tragic event. Popular forms of memorials include landmark objects or works of a ...

near

Phnom Penh Phnom Penh (; km, ភ្នំពេញ, ) is the capital and most populous city of Cambodia. It has been the national capital since the French protectorate of Cambodia and has grown to become the nation's primate city and its economic, indus ...

Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailand t ...

. It is an unusual site in that it offers the opportunity to explore a largely intact revolutionary base.Laos Opens Wartime 'Cave City' to Visitors
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World Tourism Organization The World Tourism Organization (UNWTO) is the United Nations specialized agency entrusted with the promotion of responsible, sustainable and universally accessible tourism. Its headquarters are in Madrid, Spain. UNWTO is the leading internati ...

(UNWTO),

Netherlands Development Agency ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

and

Asian Development Bank The Asian Development Bank (ADB) is a regional development bank established on 19 December 1966, which is headquartered in the Ortigas Center located in the city of Mandaluyong, Metro Manila, Philippines. The bank also maintains 31 field office ...

have been asked to help develop the site for international visitors. A project plan has been drawn up in conjunction with the Caves Office and implementation has begun, with improved signage and interpretation at sites.

References

{{coord, 20.40, 104.23, region:LA, display=title Caves of Laos Vietnam War History of Laos Show caves Tourist attractions in Laos Geography of Houaphanh province