Prasat Khao Noi Si Chomphu is an important archaeological site located on the summit of Khao Noi Hill in Thailand’s eastern border region. The site consists of a group of three brick towers arranged on a shared base, reflecting the prosperity of early Khmer civilization during the 12th century CE. Although parts of the structures have deteriorated over time, the overall architectural layout still clearly conveys the former grandeur and sacred nature of the sanctuary.

The most distinctive feature of this site is the use of pink sandstone in door frames, decorative pillars, and architectural elements, which gives the monument its name. The unique coloration sets it apart from other Khmer temples, enhancing its visual appeal. The central tower is the most well-preserved structure and serves as the main focal point for visitors fascinated by ancient Khmer civilization.

The historical significance of Prasat Khao Noi Si Chomphu lies in the discovery of sandstone lintels carved in the Sambor Prei Kuk and Phraik Meng styles, representing early Khmer art that is extremely rare in Thailand. The original lintels are now preserved at the Prachinburi National Museum for conservation purposes. These findings demonstrate highly refined stone-carving skills and reveal the strong influence of Hindu religious beliefs that spread into this region over a thousand years ago.

The atmosphere surrounding the temple complex on the hilltop is marked by tranquility and lush natural surroundings, with dense vegetation and gently sloping terrain. Climbing the 254-step Naga staircase leading to the sanctuary symbolizes a spiritual ascent toward a sacred place. Upon reaching the summit, visitors are rewarded with cool breezes and panoramic views of the Thai–Cambodian border landscape, creating a memorable and enriching experience.

For photographers, artists, and cultural enthusiasts, Prasat Khao Noi Si Chomphu offers exceptional inspiration. Afternoon sunlight reflecting off the ancient bricks and pink sandstone produces warm, mystical tones, while doorways and window openings naturally frame evocative images that express the passage of time. Historians also value the site as a place to study the evolution of Khmer art styles, as evidence of restoration and modification from different periods can still be observed.

Prasat Khao Noi Si Chomphu is therefore not only a visually striking monument, but also a vital testament to a thousand-year-old civilization where art, religion, and landscape are harmoniously intertwined.

By Private Car:

• From Aranyaprathet town, take Highway 3067 for about 12 km toward Wat Khao Noi Si Chomphu. You can drive directly up to the parking lot near the summit.

By Local Transport:

• You can hire a tuk-tuk or a local songthaew from Aranyaprathet town directly to the temple grounds at the base of the hill.

Best Time to Visit:

• November to January offers the most pleasant weather for exploring. If visiting in summer, bring an umbrella and plenty of water.

Footwear:

• Wear sneakers or sturdy walking shoes to navigate the stairs and the uneven terrain around the towers.

Photography:

• The light between 3:00 PM and 5:00 PM is ideal for bringing out the vibrant pink and red hues of the stone and brickwork.

Local Culture:

• Visit Wat Khao Noi Si Chomphu at the base of the hill for merit-making, and please follow the conservation guidelines strictly when exploring the ruins.

Planning:

• If you prefer not to climb the stairs, there is a paved road that allows you to drive your car directly to the parking area near the towers.

Admission Fee

• Free entry for all visitors.

Opening Hours

• Open daily: 08:30 – 16:30