JW Marriott Dongdaemun Square Seoul The Lounge is a lounge bar on the first floor of JW Marriott Dongdaemun Square Seoul, serving afternoon tea and bingsu with a full window view of Dongdaemun. In strawberry season it serves fresh strawberry desserts, and in summer it offers mango bingsu and cold pasta. Without a reservation, there may be no table, so you may have to wait or leave. The set costs more than afternoon tea sets at other hotels.