Probably Mugunghwa 1514 from Yeosu to Yongsan, pictured between Suncheon and Gukseong.
A southbound Mugunghwa train speeds south along the double track Gyeongbu line behind a Class 8200 electric.
Korail train 1640 bound for Seouls Cheongyani station rumbles out of a tunnel and over directly over a bridge on a scenic stretch of the mountainous Yeongdong line.
A Class 8200 leads a Mugunghwa train into Seoul Station. Seen from the North Seoul Tower observation deck.