Sum Tarr is a tart cafe in Nohyeong-dong, Jeju, across from the Nohyeong branch of Jamae Guksu. It serves egg tarts as its base, along with fruit tarts, sets themed on different regions of Jeju, cakes, cookies, and drinks. Around 5 p.m. most tarts are sold out and only about six kinds remain, and customers choose an Americano with either acidity or bitterness. The cafe sits in a downtown alley, so its parking lot is small and parking is inconvenient.