Hirao Dai is a vast karst plateau located in Kitakyushu City, Fukuoka Prefecture, Japan. Characterized by unique landforms such as dolines (funnel-shaped depressions) and uvalas (merged dolines) formed by the dissolution of limestone by rainwater, Hirao Dai offers breathtaking natural scenery that changes with the seasons. Home to a variety of karst plants, rare insects, and birds, Hirao Dai is a year-round destination. Visitors can enjoy various outdoor activities such as hiking, cycling, and camping. 【Recommended tourist spots】 ・Sorarando Hirao Dai 　Enjoy a variety of activities including barbecue, athletics, and soba-making. ・Hirao Dai Nature Observation Center 　Exhibits and observation programs about the nature of Hirao Dai are held. ・Senbutsu Cave 　One of the caves in Hirao Dai. Explore the mysterious cave.