Chamadang is a cafe near Yeonggwang Bookstore in Seomyeon, Busan, serving Korean traditional teas such as daechu cha, saenggang cha, and omija cha. A tea order comes with handmade yanggaeng and sunflower seeds, along with boicha. Staff explain the teas and how to brew them, and a warm boicha is served after the traditional tea. The space is small and groups are common, so it can be loud.