According to Tay ethnic language, "Nguom Ngao" means tiger cave. It is said that, this cave used to be the natural habitat of many tigers, so the local villagers names it after that. Another legend said, the roaring sounds come from the sound of the springs flowing in the cave listened like a roar of an angry tiger so the local people called Nguom Ngao Cave.
With the total length of 2,144m (including 1,000m for tourist service), the cave is truly an idea place for nature-lovers. It has three main gates: Nguom Ngao, Nguom Lom and Ban Thuon (Tay names). According to research, Nguom Ngao Cave was derived from limestone that contained petrified corals, because the area was previously ocean, around 400 million years ago. It is very cool in summer and warm in winter.
