Blackup Coffee Eulsukdo is a large cafe in the Eulsukdo Ecological Park in Busan, on the route toward Myeongji. It serves seawater salt coffee, matcha drinks, egg tarts, croissants, and salt bread. The cafe has its own parking lot for 11 cars and a drive-through, and it is quiet on weekdays while seats fill quickly on weekends and after meals. It is close to the airport, so low-flying planes can be heard.