Where Did This Come From?

I fished this huge beetle out of our pool on Thursday. How ironic that my friend fished one out of her pool in a different state on the same day. Good thing it wasn't moving. And...good thing I wasn't in the pool when this thing landed. I told Maddie to put her hand by it so I could show how big it was. Um...don't look too close...she has some long nails.