
Gwangmyeong Cave transforms a former mine into an illuminated subterranean attraction — dramatic caverns, LED light shows, reflective pools, sculptures, a wine cellar and tunnel art provide varied frames. Visit late afternoon into evening for colored-light contrasts; weekdays are quieter. Paid entry and onsite parking; paths are paved but bring a flashlight for side passages. Accessible by car or bus from Seoul; allow 2–3 hours to explore lighting setups and compositions.

Gwangmyeong Cave transforms a former mine into an illuminated subterranean attraction — dramatic caverns, LED light shows, reflective pools, sculptures, a wine cellar and tunnel art provide varied frames. Visit late afternoon into evening for colored-light contrasts; weekdays are quieter. Paid entry and onsite parking; paths are paved but bring a flashlight for side passages. Accessible by car or bus from Seoul; allow 2–3 hours to explore lighting setups and compositions.