In the DMZ, the actual location of the North-South partition, a soundless war began with the armistice agreement between North and South Korea on July 27, 1953. The divide is located between the Northern Limit Line and the Southern Limit Line. It is a buffer zone to prevent hostile activities between the North and the South and a recurrence of war in the future. Both countries are prohibited to station any army, allocated weapons, and establish military facilities in this area. The DMZ takes up about 0.5% of the Korean Peninsula and the South is under the control of the UN armistice commission. The DMZ of the Korean Peninsula is the only field of national division in the world, and especially Gangwon-do is the only region divided into the south and north like Berlin was in the past.
The Punch Bowl is a valley that rests in 400~500m above-sea-level highlands near the coast of Yanggu-gun. American reporters dubbed the basin the punch bowl. From Dolsanryeong that is between the east side and coasts in Yanggu-gun. Visitors can view the beautiful panorama of the sea of fog that often hangs around the punch bowl.
This is the only of the North-Korean-built tunnels that was discovered with motorized transport inside. The water flowing out of the tunnel has been filtered through mountain rock and is considered healthy to drink.
Eulji Observatory Tower is located 1,049m above sea level and one of the bitterest battlegrounds of the Korean War. From the tower, visitors can see the checkpoint and farms in North Korea and four peaks including Birobong, the highest in the Mt. Geumgangsan.