Nature is a precious legacy to be left for the next generation. Mecca has implemented integrated design guidelines, including BI, sign design, and color design in the national park, representing the natural ecosystem and natural culture landscape of Korea. The beautiful scenery of the mountains and water, which is a key element of the national park, contains natural ecosystems, and is captured in BI using colors that give a refreshing feeling. Also, by using natural colors and materials, the facilities are designed to match naturally without feeling heterogeneity in the national park.