When you reach the airport exit turn right and continue on till you reach the third roundabout.
It's beside a BP service station. Follow this round to the right, signposted Sorell. It’s the A3.
Drive through the Sorell strip shopping centre till you reach a T intersection. Turn left.
You are still on the A3 and will pass through Orielton, Runnymede, Buckland, Orford, Triabunna, Swansea and Cranbrook.
From Swansea it’s 33 km to the Coles Bay turnoff, which will be on your right.