Cave '99 mountains and 99 lakes' between the Northwest forest

Tien Son Cave is one of the intact rock caves of the Northwest, with beautiful stalactites. On the road from Sapa to Lai Chau city, you have the opportunity to pass by Tien Son Cave. 

Tien Son Cave is attached with the legend of 99 mountains and 99 lakes of Lai Chau people. According to the legend, 99 mountains are the symbol of 99 healthy boys, and 99 lakes are 99 industrious and beautiful girls. 

Mountains and lakes form a belt enclosing a rich land, which is Tien Son cave. On the ceiling of the cave, there are many drooping stalactites, forming strange shapes. The cave consists of 49 consecutive arcs running through two mountain slopes.