From fossil-rich islands in Satun to prehistoric discoveries in Khorat, Thailand’s geological heritage is gaining fresh attention. With Khon Kaen advancing towards UNESCO recognition, the country is building a conservation story that connects ancient landscapes with contemporary livelihoods.
A Third Geopark Moves Closer
Thailand currently has two UNESCO Global Geoparks: Satun, designated in 2018, and Khorat, added in 2023. A potential third reached an important milestone this November.
According to Thai PBS’s November 4, 2026 report, Khon Kaen Geopark passed evaluation by the UNESCO Global Geoparks Council. Its application is expected to reach UNESCO’s Executive Board in April 2027 for final approval. Recognition is therefore still pending.
Covering Wiang Kao and Phu Wiang districts, Khon Kaen’s bid centres on dinosaur discoveries and local management. The provincial administrative organisation leads the effort, with technical support from Thailand’s Department of Mineral Resources. Its progress demonstrates how geological significance must be supported by institutions capable of protecting sites and involving communities.
Satun Reveals a World Beneath Ancient Seas
In southern Thailand, Satun’s approximately 2,597 square kilometres contain evidence of marine life dating back more than 500 million years. Its designation as Thailand’s first UNESCO Global Geopark brought international attention to landscapes where fossils help explain the region’s distant past.
UNESCO highlights Cambrian trilobites on Tarutao Island and marine sedimentary rocks spanning the Cambrian to Permian periods. These discoveries give scientific depth to a destination already distinguished by limestone formations and coastal scenery.
At Prasat Hin Panyod, visitors can kayak through sea caves towards a hidden lagoon enclosed by limestone pinnacles. The experience offers a vivid introduction to how water shapes rock—and why these formations deserve careful protection.
Khorat Makes Prehistory Accessible
In northeastern Thailand, Khorat UNESCO Global Geopark covers 3,167 square kilometres, largely within the Lam Takhong river basin in Nakhon Ratchasima province.
Its distinctive cuestas are ridges with steep slopes on one side and gentler slopes on the other. Alongside these landforms, dinosaur remains, petrified wood and fossils representing 10 genera of ancient elephants reveal different chapters of prehistoric life. Among its notable discoveries is the dinosaur Sirindhorna khoratensis.
Education is central to interpreting this heritage. Discussing Khao Sam Sip Sang in Sung Noen district, Khorat Geopark director and Thai researcher Pratueng Jintasakul told Khaoyai Connect: “These details are incredibly significant for the education of our youth and students, as well as for tourism.”
Local Knowledge Builds Lasting Value
The benefits extend beyond sightseeing. UNESCO reports that Satun’s geotourism initiatives have supported employment, additional income and infrastructure investment through cooperation among communities, government agencies and conservation organisations. Its wider learning programmes also connect schools and universities with geoscience, cultural knowledge and mangrove restoration.
For travellers from Singapore and elsewhere in ASEAN, these destinations offer opportunities to learn through local guides, museums and community experiences. Their value should be assessed through conservation outcomes and benefits reaching residents.
Thailand’s broader national park system provides another perspective: the Tourism Authority of Thailand reported 156 national parks in January 2026. Geoparks are a distinct designation, although their boundaries can include protected areas; Satun spans two national parks and a wildlife sanctuary.
As Khon Kaen awaits a final decision, Thailand’s next chapter will depend on sustaining the work behind recognition: protecting geological evidence, sharing knowledge and giving communities a meaningful role in their landscapes’ future.
