Bill beat me to the punch with mentioning the hawse pipe as a source of water ingress.   The hawse pipe on my boat (Hull # 335) had chaffed and corroded through at the ceiling of the bow locker.  The rust had caused the fiberglass in the area to crack and split.  During a recent sail we had water in the two forward lockers from this source.  Replacing with a stainless steel 3 inch OD (0.25 inch wall diameter) tubing in 316L SS (pricy at $10 US per inch) but it should be good for a long time.

Gary S. Silver
s/v Liahona   Amel SM 2000 # 335
Puerto Del Rey  Marina, Fajardo Puerto Rico