oldharry
Well-known member
One isolated area like that is not necessarily bad news. Strip off all round the area, and have a look at the joins to see if the plywood is softening, then if there is damage follow Madhatters instructions. It may equally well be an area of inadequate paint preparation, or an abrasion to the paint coat allowing water underneath.
Looks a nice one - far better than some of the plywood boats I have owned!