If Boots was on that walk with his Wista, and that's him with the steely pose and glum face in the photo I have in Picasa, it is dated June 2009. Therefore, it is 3 years. By the Lord Harry, where did those years go??
I'll exercise Olly the XA down by the Toorongo riverside, where the falls are further up, in and out of dark little nooks and generally make good use of the last few frames on the roll. Then it is a roll of B&W for a cheerful change.