A man holds up a trout on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





Trout are laid on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





A boy fishes for trout through holes in a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





People fish for trout through holes in a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





People fish for trout through holes in a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





A girl fishes for trout through holes in a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





A man reacts after catching a trout with his hands during an event promoting the Ice Festival on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





A man reacts after catching a trout with his hands during an event promoting the Ice Festival on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





People bite trout after catching them with their hands during an event promoting the Ice Festival on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, January 14, 2017. (Photo by Kim Hong-Ji/Reuters)





Anglers throw lines on a river during a trout catching contest in Hwacheon, South Korea, Saturday, January 14, 2017. The contest is part of an annual ice festival which draws over 1,000,000 visitors every year. (Photo by /Ahn Young-joon/AP Phot)





A boy catches a trout while ice fishing on a frozen river during a fishing contest in Hwacheon, South Korea, Saturday, January 14, 2017. (Photo by /Ahn Young-joon/AP Phot)