Thuy Son Mountain
Marble Mountains (Vietnamese: Ngũ Hành Sơn; "Five elements mountains") is a cluster of five marble and limestone hills located in Ngu Hanh Son ward, south of Da Nang city in Vietnam. The five 'mountains' are named after the five elements; Kim (metal), Thuy (water), Moc (wood), Hoa (fire) and Tho (earth).
All of the mountains have cave entrances and numerous tunnels, and it is possible to climb to the summit of one of the peaks. Several buddhist sanctuaries can also be found within the mountains, making this a famous tourist destination.