Khao Kho is a popular natural tourist attraction in Phetchabun Province. It's famous for its beautiful sea of mist, especially during the late rainy season and early winter (October-February). It's also home to important landmarks like Wat Phra That Pha Sorn Kaew, a windmill field, and several other sea of mist viewpoints. Visitors can experience cool weather, beautiful nature, and a variety of activities, including flower viewing, taking photos with windmills, or stopping at a mountainside cafe.