Seooreung in Goyang is a UNESCO World Heritage site covering five tombs of Joseon kings and queens and two won. It includes Myeongneung of King Sukjong, Changneung of King Yejong, and the tomb of Jang Huibin, along with walking paths through pine and oak forest. A full loop takes about 1 hour 30 minutes along a 4.4km trail with benches and toilets along the way. On weekends the small parking lot fills up and waiting is possible.