Marble 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 under the five elements Kim (metal),Thuy(water), Moc(wood), Hoa(fire) and Tho (earth). All of these mountains have cave entrances and numerous tunnels. It is possible to climb to the summit of one of the peaks. Several buddhist sanctuaries could also be found, making it a famous tourist spot.