The Viengxay collapses Houaphanh Province of North-Eastern Laos are a broad system of collapses limestone mountains. Four-hundred eighty of these holes were utilized by the Pathet Lao amid the Second Indochina War to protect from American siege. Up to 23,000 individuals lived in the holes, which contained a healing center, a school, Pathet Lao workplaces, pastry kitchens, shops, and even a theater. The zone was home to the Communist armed force, who were battling the royalist strengths, situated in Vientiane. The caverns were utilized for living and acting as a part of in light of the fact that the U. S. Aviation based armed forces was bombarding the territory so vigorously. Local people say that ranchers needed to cultivate around evening time to abstain from besieging strikes. Vieng Xay served as a base for the Communist strengths (and holding office for caught US servicemen) in light of the fact that it was near the Vietnamese fringe for logistical and political backing.
Highlights – Nok Ann Cave, Noua Waterfall.
Location - North-Eastern Laos