---

Steve,
That looks like an old repair that is in need again. On my '68 13, which I think is the same construction, there is no wood in that spot, which seems to be just forward of midship on the starboard side. The one piece inner hull comes up and lays over the outer hull. There is foam between the two. If you look at my personal page, you can see that I ran a new wire to the front for the light. I used a router to cut a 1/4" wide groove from the rear area to the bow, ran the wire inside the groove, and then put bondo over it to seal it in.
Yours looks like an old repair, but done pretty well in my opinion. Open it up, new glue, new screws, and maybe glass over it and you should be good to go. Good luck and keep us posted.
Mike