Jun Ji Hyun from 'The Legend of the Blue Sea' apparently fought off hypothermia while filming the beautiful mermaid scenes in the ocean!

On November 21, the staff of the drama released a behind-the-scene video and a story from the making of the mermaid scene. In the video, Jun Ji Hyun can be seen swimming skillfully into the ocean without hesitation, working hard to portray a mysterious sea creature. Even though the viewers only saw one scene, the actress had to repeat swimming dozens of times. 

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Staff report that Jun Ji Hyun did not complain or imply that she was tired but showed off her sense of humor while filming. The actress also had to wear a heavy mermaid suit that made her breathing difficult, but it did not stop her from portraying a graceful mermaid. Staff were also surprised by Jun Ji Hyun's hard work despite risks of hypothermia due to being in the water for so long. 

Check out the while making film in the video below!