With the lochan low went over causeway yesterday, seemed even more exposed than last time I managed to do this. To call it a causeway is to over-egg the pudding as it is more a line of stepping stones (warning -halfway across you have to jump onto the edge of a slab to get between stones). Saturday I had the feeling that the stones could be re-used from the original prehistoric structure on the islet, perhaps when the kirk was founded. Looking back along the mound’s northern side from the far end there is a kind of stepping to the turf – one of the two contenders for causing this is a broch of course