From Loch Eribol
Ascent : 1025m, distance : 11km
At the southern end of Loch Eribol, park by the access track for Polla Farm. Cross a deer fence, then stike uphill using a forest firebreak following river coming directly down from Beinn Spionnaidh. At the edge of the forest, two posts aid crossing the deer-fence. Further up the grassy ground is left behind and boulders gradually take over. Boulderfield is crossed to the summit of Beinn Spionnaidh. To reach Cranstackie, follow the main route described above.
To return, aim south-south-west from Cranstackie over more boulders for 500m, then south-south-east for another 500m, then start to turn east. Boulders gradually ease and you should be able to pick an easy route down. Pick up the Allt Coire an Uinnseinn and, if in spate, cross via a bridge at around c100m. Reach the buildings of Polla to pick up a track to follow back to your car.