natural cave between Tám Sơn and Yên minh - vietnam

natural cave between Tám Sơn and Yên minh - vietnam, cave mouth, caving, natural cave, spelunking natural cave between Tám Sơn and Yên minh - vietnam, cave mouth, caving, natural cave, spelunking

natural cave between Tám Sơn and Yên minh - vietnam

Natural cave between Tám Sơn and Yên Minh (Vietnam)

There are hundreds of large natural caves in this area, most of them unexplored.­

cave mouth
caving
natural cave
spelunking
November 19, 2005
Route 4C, Ha Giang, Vietnam