Vietnam opens mega cave

Tagged the world’s biggest cave, Vietnam’s Son Doong Cave will officially open to tourists next year, but until then a trial route through the cave is being tested.

According to the district’s committee, the preliminary cave tour was suggested by Howard Limbert, an expert and member of the British Cave Research Association.

Mr Limbert recommended a Vietnam tour could be offered twice a month and limited to a small group of seven or eight visitors.

He warned that before the cave was fully opened, authorities needed to set in place measures to preserve the sensitive environment and limit access with proper trails and roped off areas to ensure safety.

Exploration of the cave is best during the dry season, between February and August.

A group of British scientists who are linked to the British Cave Research Association, led by Limbert, conducted a survey in 2009.

Son Doong Cave, was discovered in 1991 in Phong Nha-Ke Bang National Park. Considered the largest cave in the world it contains a fast-flowing underground river.

According to Limbert, the cave is five times larger than Phong Nha cave, previously considered the biggest cave in Vietnam. The biggest chamber of Son Doong is more than 5 km long, 200 metres high and 150 metres wide. With these dimensions, Son Doong overtakes the Deer Cave in Malaysia as the world’s largest cave.

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