The goal of the plan was to maintain the historicality of four cities – Yeongwol, Taebaek, Jeongseon and Samcheok; renew the somewhat negative image of the discontinued mining area, and activate and promote the symbol of the four cities and their tourism resources. The spatial concept to succinctly explain and symbolize the goal was realized through the cave, which could express the exciting future of the unknown. The overlapped image of the cave was used to refer to the four connected cities and their symbolism. Haeahn Architecture aimed to preserve and maintain the existing natural environment and made the plan facing the view of Cheongnyeongpo Cape where Danjong, king of Joseon dynasty, was exiled.