Khao Kha Archaeological Site is an important Shaivite Hindu religious complex with great historical significance. It is located on a small hill in Sao Phao Subdistrict, Tha Sala District, Nakhon Si Thammarat Province, in a peaceful and natural setting. The site dates back to the 12th–14th Buddhist centuries, reflecting a period of cultural prosperity in the past. During that era, Khao Kha was not only a religious sanctuary but also a center of an ancient community situated along trans-peninsular trade routes, connecting with Indian and foreign merchants through nearby coastal areas.

The geography of Khao Kha was deliberately chosen based on the belief in sacred mountains or Mount Meru. The site shows strong influences from South Indian Pallava art, which was widespread throughout the peninsula. Visible remains include brick building foundations and pedestals for sacred objects. One of the most remarkable discoveries is the sandstone Shiva Lingam and the Yoni base, which remain well preserved and visually impressive.

The architecture reflects a belief system deeply connected to nature and religion. The site also features an advanced ancient water management system, consisting of wells, drainage channels (Somukha), and “Traphang,” or ancient reservoirs, located around the hill in all four cardinal directions. These elements demonstrate highly sophisticated engineering for its time.

The Fine Arts Department has surveyed and restored the area, transforming it into an important historical learning site. The atmosphere atop Khao Kha is shaded by large trees and cooled by gentle breezes, making it ideal for exploration. From the archaeological remains, visitors can enjoy panoramic views of the surrounding Tha Sala District.

Access to the summit is convenient via well-maintained stairways and walking paths. The site provides valuable insight into the arrival and spread of Hinduism in Southern Thailand. Along the path, visitors can experience a serene and well-preserved natural environment. Informational signs in both Thai and English explain key points throughout the site.

Khao Kha is not only an archaeological landmark but also a symbol of ancient spiritual devotion. It is especially suitable for students, researchers, and those interested in history and art. Visiting the site feels like stepping back in time to an era of great civilization. Khao Kha Archaeological Site therefore stands as an important cultural heritage preserved by the people of Nakhon Si Thammarat.

• By Private Car: From Nakhon Si Thammarat city, take Highway No. 401 (Nakhon Si Thammarat–Sichon) toward Tha Sala District. Continue past the district center toward Sao Phao Subdistrict. A sign for Khao Kha Archaeological Site will appear on the left-hand side. Turn in and drive approximately 2–3 kilometers.

• By Public Transport: Take a minivan on the Nakhon Si Thammarat–Sichon or Nakhon Si Thammarat–Surat Thani route. Get off at the entrance to Khao Kha Archaeological Site (Sao Phao Subdistrict), then continue by local transport or on foot.

• Dress modestly, as this is an ancient religious site.

• Wear comfortable walking shoes suitable for climbing hills.

• Do not climb on, write on, or remove any bricks or artifacts.

• The best time to visit is in the morning (08:30–10:30), when the weather is cooler and lighting is ideal.

• Bring drinking water, as there are no shops at the summit.

• Read the information boards before climbing to better understand the site’s history.

• The Yoni base and Shiva Lingam area is the most iconic photo spot.

• Keep noise to a minimum to preserve the sacred and peaceful atmosphere.

• During the rainy season, paths may be slippery—walk with caution.

• Nearby attractions such as Hat Piti Beach and Wat Chedi (Ai Khai) can be visited on the same trip.

Admission Fee:

• Free of charge (under the supervision of the Fine Arts Department Region 12, Nakhon Si Thammarat)

Opening Hours:

• Open daily 08:30 – 16:30