From Hongik Station (Line 2): As you exit 9 of Hongik Univ.  Station (Hongdae), go straight about 100m and turn left at the intersection.  Go straight another 300m; on your left you will see New Balance, KB bank and Over the dish.  At the end of the street, across from Hongik Univ.  Main Gate(홍대 정문), cross the road to the right toward Playground Park.  Go straight about 50m. Playground Rooftop Cafe & Bar is on your right, on the 3rd floor. ( There is a convenience store named 'Good Time' on the 1st floor.)