As a UNESCO World Heritage Site and ASEAN Heritage Park, Khao Yai National Park holds immense global and regional significance. Spanning across four provinces – Saraburi, Nakhon Ratchasima, Prachin Buri and Nakhon Nayok – this expansive 2,206 square kilometer park is a vital watershed, supporting an extraordinary biodiversity and serving as a sanctuary for numerous endangered species. With over 280 recorded bird species, Khao Yai is a renowned destination for birdwatchers worldwide.