A Loon

We took the kids into town tonight to swim at the beach.  There were probably about 15-20 people in the water splashing around and being really noisy when right in the middle of them a loon pops up out of the water.  He would then dive down and pop up on the other side of the swimming area, dive down and pop up on the other side again.  Dad wondered if the swimmers were stirring up fish that he could easily catch.