From Hillswick the route follows the A970 for 1.5 miles (2.5km) to Urafirth to make a right turn on the single-track leading to Heylor and Swinister. After about 0.5 miles (1km) the road forks. Take the ‘dead-end’ fork to the left for about 1 mile (1.5km) and down to the shore at ‘The Blade’. This affords the best view of the steep, ice carved, bright red cliffs on Ronas Hill that plunge into the deep waters of the fjord of Ronas Voe. The ruined buildings and jetty at The Blade are from the 19th Century herring fishing; please note that the shingle spit beyond the jetty is a nesting site for arctic terns in the summer and should not be walked on when the birds are nesting.
Returning to the road fork there is 2.5 miles (4km) of single track with little in the way of climbs along the scenic south shore of Ronas Voe to join the A970 at Swinister.
The route follows the single-track A970 north for 7 miles (11.5km) to its end at Isbister. This is a relatively flat and sometimes straight route but there are a few short climbs. There is a sharp bend at The Brig as it crosses the Burn of Roerwater that rushes over red granite boulders, followed by a climb uphill above Collafirth Pier. There is a caravan park with toilet facilities at Collafirth Pier.