From Sandsayre there is a very steep climb of 0.5 miles (0.75km) and about the same distance again for the right turn onto the busy A970 towards Cunningsburgh. About 0.5 miles (1km) along this road there is a short loop of the old road around to the left that will take you to a disused quarry track leading up the hillside. The quarry track is cut into the buff-coloured bedrock which is composed mainly of the soft white mineral talc and the more exotic green-blue and much harder serpentinite. You can walk up this track then across the hillside to the Catpund Viking site where the rock, known as kleber in Shetland, was quarried by the our Norse ancestors to make a whole range of objects including cooking pots, loom weights, lamps and fishing sinkers. Fine examples of these are on display in the Shetland Museum and Archives in Lerwick.