^Ditto ^

It's a canoe, not a racing hull. Use a grinder and rough it up for a foot or so beyond the damaged area, stuff the hole with fiberglass matting and apply several layers of fiberglass cloth over the area, each a little larger than the preceding one. Sand it to blend the edges, then use micro-balloon fillers and sand that for finish blending to fair it all into a smooth transition. Paint it with a roller and tip the paint with a nice ox hair or hog bristle brush. It'll float and paddle just fine - and you'll be happy - so long as you don't pay too much for it to begin with.

Frank