There is a small aperture on the north side, visible from one of the pews. Looking through it you can see just how thick the wooden log walls are. The hole is sometimes referred to as a "Leper's Squint". Lepers were not allowed into churches, but some say they could watch proceedings and receive blessings through such a viewing hole. Alternatively, its position next to the original doorway into the church means it may simply be a spyhole to see who is outside.