Entered through a rock tunnel pierced into a cliff wall, Am Tien Valley ("Tuyet Tinh Coc") reveals a still, jade-green lake completely ringed by vertical limestone mountains.
Once accessible only by climbing over jagged mountain passes, Tuyet Tinh Coc (Am Tien Cave) is a hidden crater-like valley next to Hoa Lu Ancient Capital where Queen Mother Duong Van Nga spent her final years as a Buddhist nun in the 10th century.
Walking through the stone tunnel opens onto a mirror-like emerald lake encircled by cliffs, a lakeside walking path, and a cave pagoda halfway up the rock wall.
Highlights of Tuyet Tinh Coc (Am Tien Cave)
- 360-degree amphitheater of vertical karst cliffs
- Crystal-clear jade lagoon & stone lakeside promenade
- 10th-century Am Tien Cave Pagoda & stone city wall viewpoint
Things to do
Walk the lakeside path
Circle the emerald lagoon for reflections of the surrounding cliffs.
Climb to Am Tien Cave Pagoda
Ascend 205 stone steps up the cliffside to the ancient cave sanctuary overlooking the lake.
Plan your visit
How to get there
Located between Hoa Lu Ancient Capital and Trang An.
Best time to visit
Sunny mornings or early afternoons when the sunlight turns the lagoon bright turquoise.
