images of Au Co mother legs printed on rocks (at Tien Son cave, Ham Rong, Thanh Hoa, Vietnam)
The cave is located in Dong Son village, Ham Rong ward, Thanh Hoa city,
about 900m from Ham Rong bridge and National Highway to the Northwest,
about 4,650m from the center of Thanh Hoa city to the Northeast,
The cave has a length of about 600m, a width of 12.5m and an
average height of 20m (the highest point is from the lap to the road to the sky is more than 50m).
In the cave there is also a fairy lake,
spiritual guests often ask this little water to apply to the face for "bright eyes", "tight knees"
or drop into shrimp and fish fields to pray for things to grow quickly. .
There is also a Au Co model foot in the stone,
people can come here to try on their feet,
pray with their eyes closed to see tiredness dissipated, relaxed soul.