Check out this Jandariro Cafe in Hongdae that has magneficent Autumn view, make your trip in Korea to the fullest~ 

잔다리로63 카페

Address: 서울 마포구 잔다리로 63 (63 Jandari-ro, Mapo-gu, Seoul)

 Operation Hour: 11:00 ~ 23:00 (Monday off)