Thiên Khổng Thạch Tự "Thiên Khổng Thạch Tự" - An Hai commune, Ly Son Island, was created during the reign of Le Kinh Tong's King by Tran Cong Thanh who was here to build and opened up An Hai village. Hang pagoda was located in one of the largest cave of the cave system at Ly Son, created from Thoi Loi mountain with steep cliffs high near 20 meters. The name of this temple was also derived from its unique location . Hang Pagoda was ranked national landscape by Decision No. 921 July 20, 1994 of the Ministry of Culture - Sports and Tourism.