c&c 34 1981 Pictures

from the pictures its hard to tell what I'm seeing. I bought a C&C 34 a couple of years ago, that had massive issues around the Keel Hull joint. Took about 2 months to repair, but everything is fine now.

Better closeup pictures would be helpful

Not at all! I don't see any "smile" I own a C&C 35/3. check out cncphotalbum.com

I'd get it soda blasted for the examination. Then you could repair any needed areas and seal it. Then you'd have a nice bottom paint job. From you photos it looks pretty good.