The area of Naju has long been at the forefront of the natural dyeing and silk production industry. The natural setting of fresh water from Yeongsangang River along with the salt water from the sea are perfect for growing the plants necessary for a deep indigo color. As such, it is the only area to be recognized for its natural dyeing (Important Intangible Cultural Heritage No. 115) by the Cultural Heritage Administration. The best place to experience this local heritage is at the Natural Dyeing Culture Center. The center offers experience programs and educational programs, as well as exhibitions and sales of naturally dyed products.