Son Doong Cave - the largest cave in the world

Son Doong is considered to be the largest cave in the world, based on volume and also the biggest cave in Vietnam, found by Ho Khanh – a Phong Nha jungle man in 1990. In 2009, Hang Son Doong was officially surveyed and measured by the The British -Vietnam Cave Expedition Team led by Howard Limbert. The Expedition team then announced it as the world's largest natural cave with a volume of 38.5 million m3 To explore, you book it in Oxalis website - Oxalis is the exclusively company provide the expedition. The scene is one of the most amazing things Ive seen in life. $3000 is not a small amount but the trip is far more than that. Oxalis service is also perfect. You will never regret it!