Sa Si Liam Ancient Site is a highly valuable historical site in Phanat Nikhom District, featuring a large ancient pond excavated in a remarkably proportional rectangular shape. The significance of this pond is deeply tied to the community, leading to the naming of the subdistrict after the shape of the pond as Sa Si Liam Subdistrict (Rectangular Pond Subdistrict) to serve as a symbol and honor the local heritage. According to archaeological assumptions, this pond was created to serve as a reservoir for domestic water use by the ancient community that settled in this area for a long time. It was also a sacred site used for religious ceremonies based on the beliefs of people in the past.

The prominent and amazing feature of Sa Si Liam is its excavation into the natural laterite layer, a stone known for its strength and durability. The pond is approximately 40 meters wide and 50 meters long, with all four edges cut into straight, orderly right angles, living up to its name Sa Si Liam (Rectangular Pond). The wisdom of ancient people in choosing the location and the method of excavating through the tough laterite layer demonstrates immense engineering skills and effort in an era without modern machinery. This pond is thus vital evidence confirming that Phanat Nikhom was once a center of civilization with an efficient public utility management system for centuries.

The surrounding atmosphere of the Sa Si Liam ancient site today has been restored and the landscape improved by the Fine Arts Department and the local community to be very beautiful and shaded. Fences have been installed to prevent damage, but interested visitors are still allowed to closely observe the beauty of the ancient laterite layers and the clear water inside the pond. Large trees spread their branches to provide shade throughout the day, making this place a quiet resting spot with a unique, solemn charm. Visitors can feel the greatness of the past that still leaves traces for us to study and admire amidst pure and peaceful nature.

We invite everyone to experience the historical aura at the Sa Si Liam ancient site, a place where archaeological facts and beliefs merge proudly. Standing on the edge of an ancient pond built from the unity and sweat of those before us will make you realize the value of natural resources and the importance of preserving Thai heritage for the future. Sa Si Liam is ready to welcome everyone to study and absorb the greatness of the people of Phanat Nikhom, who have perfectly passed down prosperity through time for many centuries.

• Private Car: From Phanat Nikhom District, use Highway 315 (Phanat Nikhom - Phan Thong) and enter Sa Si Liam Subdistrict. There are clear signs directing to the Sa Si Liam ancient site along the route.

• Public Transport: Local transport services are available from Phan Thong or Phanat Nikhom stations. The access road to the site is paved and convenient for travel.

• Recommended Time: Morning (07:00 - 09:00 AM) or evening (04:30 - 06:00 PM). The sunlight will be gentle, helping to see the laterite texture clearly and beautifully for photos.

• Photography: Try using a high angle or a corner view of the pond to capture the unique "rectangular" shape of this ancient site.

• Preservation: Please help keep the area clean. Do not throw trash into the pond or scratch the laterite walls under any circumstances.

• What to Prepare: It is recommended to bring a hat, an umbrella, and cold drinks as it is an outdoor site.

• Safety: Be careful when walking around the edge of the pond, as the laterite surface can be naturally uneven.

Admission Fee:

• No Admission Fee

Opening Hours:

• Open Daily: 06:00 AM – 06:00 PM