The first time in 1826, after the boat arrived at Hoa Khue wharf, the king and his spirit came to visit the Marble Mountains. Right on the first visit, the king built two steps to the mountain, which is the entrance to Tam Thai Pagoda (now gate 1) and the entrance to Linh Ung Pagoda (now gate 2).
The king also gave Tam Thai pagoda a copper plate, gilded with leaf-shaped carvings (so called “Fire heart”), 57.5cm high, 41cm wide, 2cm thick on both sides. there were the words written by the king himself, on the back that said: “Minh Mang annihilation year of creation”. The King allowed to renovate Tam Thai Pagoda and gave the temple a sign stating: “Restricting Tam Thai Tu and Minh Mang annexing the age of creation”.
King ordained Tam Thai pagoda and Linh Ung pagoda as national pagoda.
The second time, in 1827, the king cast 9 statues and 3 big bells at Tam Thai pagoda.
The third time, in 1837, the king decreed to give an official name to the mountains, such as Dai Nam had a geographical limit for drafting under the Nguyen Dynasty: “Ngu Hanh Son in Dien Phuoc district, there was a decoction, bestowed on the northeast mountain (Tam Thai mountain), Thuy Son. The three mountains in the southwest are Moc Son, Duong Hoa and Am Hoa mountains (hence Ngu Hanh Son has up to 6 mountains - East Asia). The two western tops are Tho Son and Kim Son, and the name of the mountain on the stone is engraved.
