Phone: (0206) - 3854 211
Time to visit a place: 120 phút
Open Time: 7:00 AM -
Close Time: 6:00 PM
Address: Quoc Toan, Tra Linh, Cao Bang Xã Quốc Toản, Huyện Trà Lĩnh, Tỉnh Cao Bằng
“Mountain Angel eye” or “Phja Piot” (in Tay language means a mountain with through-going hole) is in Quoc Toan commune, Tra Linh district.
Mountain Angel eye is in fact a rounded through-going cave c.50m in diameter and c.50m high above the lake. The present day altitude of the cave is due mainly to recent tectonic uplift movements.
The cave has developed in a tower karst landscape at the altitude of c.650-700m asl, that consists of karst towers and cones alternating with several tens of lakes in their between, all together constituting the so-called Thang Hen Lake System. A peculiar feature of the Thang Hen Lake System is that the lakes are inter connected and eventually connected with surface and/or underground flows.
Hence the water level in the lakes can change seasonally, sometimes very rapidly. So on the pathway toward the “Mountain Angel eye” visitors may be surprised to find a lake, around 15ha in area when full of water and locally known as the Nam Tra lake, during the rainy season (June-August), and a doline instead, in the dry season (September onward), where local farmers can graze cattles on pasture. Also worth visiting is the beautiful Nam Tra waterfall on a stream of ... View more