Guri is a city in Gyeonggi Province, South Korea. It is located immediately to the east of Seoul, in the heart of the Capital Metropolitan Area. The Royal Tombs of the Joseon Dynasty (dong-gu-reung) are located in the city. The low mountain of Achasan is also located here, site of the Baekje-era Acha Mountain Fortress and numerous hiking trails. It also has pleasant walking paths along Wang-suk-cheon, a small creek separating Guri from Namyangju.