In Vietnam there are many famous wonders in Vietnam, there are many famous wonders but the one that I like the most. Hang Son Doong in Quang Binh is known as the largest cave in the world and one of the most spectacular item in Southeast Asia. The cave is more than 5 km long, 200 m high and some places 150 m wide.This giant cave was accidentally discovered by a local resident named Ho Khanh in the early 1990s. By 2009, when the houses explored Anh and Ho Khanh back here, Son Doong cave was officially confirmed as the largest cave in the world. I have been traveling here and I see that this place is a very beautiful tourist area, very clean ecosystem is a safe tourist destination for visitors to Son Doong cave which also means a lot. in terms of the natural position of the tourism industry in Vietnam. Please come up here once because this place is so beautiful, it is an ideal destination for those who love to travel.