Actor Joo Won revealed professional swimming skills.

In KBS 2TV "1 Night 2 Days" aired today, the members went to Gangneung.

On this day, Joo Won played a game with other members in the water. For the final round, only Sung Si Kyung and Joo Won were left and they competed for speed.

As soon as the start trigger went off, Joo Won revealed impressive swimming skills and unbelievable speed, getting himself to the final point first and winning.

Internet users who saw this commented, "Joo Won is so good at swimming," "What is he not good at?," etc.

Photo Credit: KBS 2TV