JeoJa Island is a video that started from examining a period of rapid modernization in Korea. In the 1970s, JeoJa Island vanished while being used as dredged material for the construction of the Apgujeong Hyundai apartment. In 1995 and 2011, sand was deposited naturally at the JeoJa Island site and give rise to the island. However, this sand was used again as dredged material. The video focuses on the fact that sand continues to be deposited at the site to recreate traces of the place, and attempts to imagine the reappearance of JeoJa Island by inspecting and recording the movement of sand and water flow under the opaque surface.