Originally Posted by Brent Swain
Pywood full of nails pointing upward will discourage that kind of problem.
Make sure the plywood is well tied down.
Uh I think they are protected. I'd hope the owner stepped on that plywood as well. Plenty of ways around that without hurting the animals. Lesson 1. Don't leave your boat to rot in the harbor. Lesson 2. If its too low then wrap the boat in plastic net to stop them from getting on. Simple.