[Rare close-up shot of a vivid duck swimming] I am the originator of flippers!~^^

This video was taken in a river near Anyang, South Korea in November 2023. It was suddenly so cold that I shivered that day. I overcame the trembling of my body in order to capture this rare and beautiful scene that would be difficult to see again in my lifetime.
If you watch the video, you can literally see the origin of flippers. Please enjoy watching!~^^