Hi guys/gals. I'm selling my boat and want to be 100% honest. A guy asked me what these cracks are and I don't know. They have been there for at least the 2 years that I owned the boat. Seems like it is where the top half joins the bottom half. There's nothing on the outside that shows any marks at all. And in the rear of the inside of boat its the only area that has this cracking. Thanks