Triathlon festival on Han River

A competitor swims, with his partner connected with a duck-shaped tube, in the 1-km course of the Han River in Seoul on May 30, 2025, part of the Seoul metropolitan government's triathlon competition to promote the river's improved water quality. (Yonhap)

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[ⓒ K-VIBE. 무단전재-재배포 금지]