I took a quick picture: http://www.maniacworld.com/Japan-sea-monster.jpg
In the back ground is the other boat we used. I was fishing with the family. Than the other boat turned around and it was the tail of it that bumped it. I seen it than I was like scared to death. I didn't know what it was. We ran away after the others got to land. It swimmed really fast. I am serious. And it about broke our boat.