Old Ferry Donut Magok is a donut shop in the underground arcade of Magok Case Square in Gangseo-gu, Seoul. It sits on the underground route connected to Magok Lewest and offers more than 20 kinds of donuts. The store has no walls, so it looks like a pop-up store, and the orange interior stands out. The donuts are good, but you will not come back for a second time.