Natural dyeing can easily be reduced to a souvenir workshop: dip a cloth, make a pattern, take it home. Naju offers a more interesting way to understand the practice because the experience sits inside a permanent institution. The Korean Natural Dyeing Museum in Dasi-myeon combines free museum access, exhibitions, a shop, education and bookable dyeing sessions. Current October 2026 reservation records include individual and group indigo-dyeing sessions. That matters because it shows the craft being taught in ordinary museum programming rather than appearing only when a festival arrives. The city’s October festival does add a much larger public layer. The museum and Naju Natural Dyeing Foundation announced a free indigo-dyeing program for 1,000 participants during the 2026 Naju Yeongsan River Festival, with 700 places for on-site registration and 300 for advance online reservations. It is a useful entry point for new visitors, but the more durable story is the institution behind it. Naju’s natural-dyeing culture also extends into design and professional education. The museum operates exhibitions and education programs throughout the year, and its reservation calendar shows natural-dye work being used with handkerchiefs, bags, clothing and other objects. The point is not that every workshop is experimental design. It is that plant-based color is being maintained as a skill that can move between heritage, teaching and contemporary products. For visitors, the museum is a practical starting point. Admission is free and the museum operates 09:00-18:00, with holiday closures and a Monday closure for the museum shop. Hands-on sessions are reservation-based, and the current calendar shows that available times, materials and instructors vary. We have not tested whether the booking flow is easy for people without Korean-language support or a Korean phone number. Naju is therefore worth covering not because indigo suddenly became fashionable, but because a regional institution still treats dyeing as something to teach, practice and redesign. The festival offers visibility; the museum provides continuity.