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![Braving the icy waters of Haeundae Beach, over 2,000 participants plunge into the sea during the 39th Annual Haeundae Polar Bear Festival in Busan on Jan. 18. A total of 12,000 people joined this year's unique winter event. [YONHAP]](https://image.koreajoongangdaily.com/11133199.jpg?imageId=11133199&width=240&height=184&format=webp&format=jpg)