AJP Han Jun-gu Visitors tour the interior of Gwangmyeong Cave in Gwangmyeong, Gyeonggi Province, July 31, 2026. Han Jun-gu Copyright ⓒ Aju Press All rights reserved. Related Gwangmyeong Cave Completes Summer Season Without Safety Incidents PHOTOS: From darkness to light, Gwangmyeong Cave The ‘oldest’ winery in Armenian Cave