Thien Huong Cave is located on the road near Tam Coc Ninh Binh from Ngo Dong River to Thai Vi Temple, is a dry and bright cave located halfway up the mountain with an altitude of about 15 m above the ground. The cave near Tam Coc Ninh Binh is about 60 m high, 40 m deep, and 20 m wide. The top of the cave is hollow, so the cave is also called Troi Cave. Nestled in the cave is a shrine dedicated to Tran Thi Dung, wife of King Ly Hue Tong. Is a person who has passed on to the people of Ninh Hai commune the craft of embroidery.