Gwangmyeong Cave or Gahak Mine Cave was the site of exploitation under the Japanese colonial period. The cave was the largest metal mine in the Seoul metropolitan area between 1912 and 1972, producing the likes of gold, silver, copper, and zinc. With the bankruptcy of its operating company, the mine was closed and between 1978 and 2010 it was used as a storage for salted shrimps.
In 2011, Gwangmyeong City bought the cave and transformed it into a cultural complex as well as a family-friendly attraction, including a museum, an aquarium, and an exhibition hall. In-Cave attractions include Wormhole Square, Cave-based Aqua World, Golden Falls, Cave Botanical Garden, eco-friendly Plant Factory, Gold Story, Modern History Museum, and the Underground Cave's World of Exploration. There is also Wine Cave where visitors can taste and buy domestic wines in the cave.
It's recently becoming a popular tourist place among the locals; Gwangmyeong Cave has held a lot of events and exhibitions working with various artists and organisations - notably the Lascaux International Exhibition, and Weta Workshop in New Zealand.
Address
산17-1 Gahak-dong, Gwangmyeong-si, Gyeonggi-do, South Korea
Cool breeze blowing from the tunnel makes it the best destination during summer,they also perfoming various art related activity and 3d animation inside the tunnel.