I suspect it's not a detected action, but just a picture labeled "swimming", like one of these (random image from internet): http://www.ambientegallerie.com/blo

I suspect it's not a detected action, but just a picture labeled "swimming", like one of these (random image from internet): http://www.ambientegallerie.com/blog/wp-content/uploads/2016/07/swimming.jpg http://www.ambientegallerie.com/blog/wp-content/uploads/2016...