Porlock Hill is a section of the A39 west of the village of Porlock. The road climbs approximately in less than up onto Exmoor: a very steep hill with gradients of up to 1 in 4 and hairpin bends. In Porlock itself you will often smell burning brakes from vehicles who have just descended the hill. On 12 January 1899, the ten-ton Lynmouth lifeboat was launched during a storm, but the storm's ferocity meant it could not put out to sea. Instead, it was retrieved and hauled by men and twenty horses over Countisbury and Porlock hills to Porlock Weir where the water in the bay was less rough. The endeavour eventually enabled thirteen seamen to be rescued. There is a less steep toll road that small vehicles and cyclists can take as an alternative route. It formed part of the route in the 2007 Tour of Britaincycle race. Another alternative for cyclists, avoiding tolls, is provided by part of Regional Cycle Route 51.
Countisbury Hill
About to the west of Porlock Hill, the A39 starts its equivalent descent from the hills of Exmoor. Within about, the road descends the it had previously climbed. Unlike Porlock Hill, this section is relatively straight down into Lynmouth village where there is a bridge over the river and a sharp left turn, however the gradient at the foot is also 25% for a short distance. The original road between Lynmouth and Lynton was much more challenging with gradients of around 1 in 3. It is now the B3234, Lynmouth Hill.
At Martinhoe Cross in Devon—about west of Lynton and east of Parracombe—on the north side of the A39 lies a once disused but, in 2004, restored and reopened railway station. Woody Bay was once an intermediate stop on, and is now the main operating centre of, the Lynton & Barnstaple Railway a narrow-gauge line built in 1898, which closed in 1935. Over- and under-bridges and other traces of the line can be seen at various locations along this stretch of the road.
Atlantic Highway
Atlantic Highway is the name given to a section of the A39, as it passes from the North Devon Link Road at Barnstaple in Devon until it reaches the A30 at Fraddon in Cornwall. It is so called, as it is the main road from mid-Cornwall to North Devon and follows the line of the Atlantic Ocean's coast. It is also named thus due to the former Southern Railway express that ran in this part of North Devon and North Cornwall. Views of the Atlantic can be seen along its length, although the road does not approach very close to the coastline itself. The road is signified as the Atlantic Highway by road signs indicating the route mileage throughout its length, in both directions, in white on brown above the green background of the route mileage boards. It passes by Wadebridge, Bude and Bideford, and directly through Camelford.