Haemieupseong in Seosan is a stone town fortress from the Joseon era, with wide lawns and a walking path along the walls. Inside Jinnamun Gate are the Dongheon, Cheongheojeong, a prison, and a bamboo grove, and visitors can try folk games such as archery, tuho, and gulreongsoe. Parking is free and admission is free, and one loop around the fortress takes about an hour. At sunset the lights come on, and one loop is about 5,000 steps.