Coral Pagoda at Khao That has been believed for many generations as a sacred place which the people in the area or the people nearby regard it as their spiritual anchor and to which the people in the old generation paid homage. It is widely called “Por Thao Khao That.” To completely redeem the vow here is to offer the trident candle.
On the peak of Khao That, there is Coral Pagoda which is the ancient historical site in Khanom city. It is believed to be 1,000 years old. Legend has it that there were people from Chaiya city who had great faith on Phra Borom That. They gathered their assets, money, gold, and other valuable things to be kept inside Coral Pagoda in Phra Borom That, Wat Chan Thatutharam, Khanom city, Nakhon Si Thammarat Province. However, there was a big storm, making these people stay overnight at this place for a while. When the storm calmed down, they received the news that the construction of Phra Borom That Nakhon Si Thammarat was finished. As a result, they built a stupa together on the top of Khao That. The entire stupa was made of corals. It is a round bell-shaped stupa with around 5-6 meters diameter.
There is also another legend. There were some aristocrats and ordinary people from Surat Thani, Chumphon, and Prachuap Khiri Khan Province who had faith on Phra That Nakhon Si Thammarat. They brought their property and other valuable things to be kept inside Phra Borom That. However, during their trip on boat, the boat capsized. Some people who survived were stranded on the shore. They, therefore, built the Coral Pagoda at Khao That in Wat Chan Thatutharam, Khanom city by the corals from the sea to contain the remaining valuable things, instead of keeping them in Phra Borom That Nakhon Si Thammarat.
Coral Pagoda at Khao That in Wat Chan Thatutharam, Khanom city was searched in 2006. A lot of earthenware, such as Chinese chinaware in Yuan Dynasty, Chinese chinaware in Ming Dynasty, chinaware from Si Satchanalai city, Vietnamese chinaware, and traditional chinaware, were found. Most of the chinaware was used as urns to contain the relics, except for some of the Chinese chinaware that are used for containing the votive tablets, gold ornaments, and jewellery.
In late 2010 and early 2011, the 14th regional office of Fine Arts Department at Nakhon Si Thammarat Province had renovated the historical site of Coral Pagoda at Khao That and adjusted the scenery in line with the pattern of the Fine Arts Department.
Coral Pagoda at Khao That is located in Wat Chan Thatutharam in the village number 4, Ban Tha Chan, Thong Nian Sub-district, Khanom District, Nakhon Si Thammarat Province.