The main tourism area is in the north of the province at the foothills of Khao Yai. This is where the fresh mountain water pours into the rivers and waterfalls. As you drive from Nakon Nayok town, you will pass roadside vendors selling a fabulous range of local fruits or roasting whole chickens on open spits. In the distance, you see the mountains of Khao Yai. Soon, the imposing structure of Khlong Tha Dan Dam comes into sight. You are now in the heart of one of the most popular tourist destinations in Thailand, for Thais.