I was discouraged from getting a compass, as there isn't a good place to mount one. Some on the forum have spoken of expensive mast-mounted compasses. I found a good alternative, I think. I bought the Ritchie handheld compass (see link). There is a nice mounting plate that can be attached with screws, or (as I plan) waterproof velcro.I plan to put this on the center elevated cover for the centerboard. From photos, I think it should fit. It is about 3 inches square.