Nakhon Si Thammarat was a fortified city, surrounded by ramparts. The first city wall was built during the reign of Phra Chao Sithamma Sokarat during the founding of the city on Had Saai Kaew. He built the rampart surrounded by a moat. It is assumed that the wall and many parts of the city have been renovated several times, the last being in the 17th century. However, the old line of the ramparts of the city has been well preserved. At the time of King Narai Maharat, French engineers and architects traveled to Thailand for that which explains the castle-like appearance of the ruins that exist today. Subsequently, during the reign of King Rama II, led by Phraya Nakhon Si Thammarat (Pat), the regent of the city the wall was again renovated. He lowered the dilapidated wall and used his bricks to build roads along the city wall. The Fine Arts Department of Thailand has renovated parts of the north wall. I put you the GPS coordinates of the place of the most emblematic old ramparts with its arch. It is he who is marked ''Old city wall'' on the maps.