|Location Map ( geo)|
|Distance:||5.4 miles (8.7 km)|
|Route outline (key)|
The C312 is a road of two parts, which meet at the end of the B9071 at Vidlin. The longer part of the route is the C312-050, which heads north from Vidlin up the west side of Vidlin Voe to the small village of Lunna. The route ends at the fork just beyond the narrow neck of land that connects Lunna Ness to the Shetland Mainland.
The other part of the C312 is the C312-090, which runs east from Vidlin, passing the harbour and ferry terminal before turning north west and climbing, steeply at times, over the hill to the small settlement of Lunning.