Kim Quy Grotto or Golden Tortoise Grotto is situated
on Dâm Nam Islet, with a peak 187 m above sea level.
Dâm Bac Islet is in the front of the grotto and Soi
Sim Islet in the back.
The grotto is 100 m long and 5 to 10 m wide, running
in a north-south direction.
A narrow way leads to the interior of the grotto
where a stream flows. The stalactites here are
snow-white and lightly hang from the ceiling.
It is linked to the ancient legend of the Golden
Tortoise: after having helped Emperor Lê Loi defeat
his enemies, the Golden Tortoise took back the magic
sword he had given him, and swam towards the sea.
Arriving in Ha Long Bay, it met with so many evil
spirits and demons hindering its journey that it
remained to do battle. After having defeated them
all, the Golden Tortoise was so exhausted that it
searched for a grotto to rest in, and once inside,
turned to stone.
Today in the grotto, it can be found dozing, still
with ancient wounds covering its body.