Am Tiên Cave sits in the karst hillside above a small lake in the Hoa Lư valley, in Thôn Yên Thành, Trường Yên - about 12km from Ninh Bình city and roughly 400m from the East Gate of Đinh Tiên Hoàng's temple, on the old eastern boundary of the Hoa Lư citadel. Its modern nickname, 'Tuyệt Tình Cốc,' borrows the name of a lake from Chinese wuxia fiction, and the comparison sticks: a jade-green lake, ringed by sheer limestone cliffs, sits below the cave entrance like a scene from a martial-arts film. The cliffs almost completely enclose the lake, giving it the feel of a hidden valley separated from the outside world.
A Dark History
The cave's real history is considerably darker than its present-day reputation as a photogenic day trip. Under Đinh Tiên Hoàng, it served as a holding ground for tigers and leopards used to execute prisoners convicted of serious crimes against the court, and the lake at its base - Ao Giải - was reportedly used to keep crocodiles for the same purpose, as well as to hold prisoners of war from Đại Cồ Việt's conflicts.
Queen Dương Vân Nga is said to have retreated here to practise Buddhism in her later years, remaining until her death; a monk, Nguyễn Minh Không, later built a small shrine at the cave specifically to dispel the lingering dark energy (âm khí) of its history as an execution site, and over time the sound of chanting and temple bells is said to have settled the site into the calm it's known for today.
The Pagoda and the Cave
A pagoda now stands on the path up to the old cave-shrine, honouring both the Buddha and historical figures connected to the Đinh dynasty. The cave itself is shaped like an open dragon's mouth, its stalactites forming shapes locals read as rice sheaves, money trees, Buddha's-hand fruit, and lotus buds - and it still preserves an old bronze bell and a carved stone stele from its long use as a place of worship.