After many, many hours of cleaning the boat for winter storage I found an unpleasant little hole in my ski locker. It looks to go all the way down through the fiberglass. Should I just patch this up or am I in real trouble here with water intrusion? That area is usually always wet so water would definitely have gotten in there.

I am quite worried now and would appreciate any insight.
TIA!!!

I am quite worried now and would appreciate any insight.
TIA!!!