The B7063 is a link road on Galloway's Machars Peninsula. It was originally unclassified but gained its number in the mid-1930s. The road is a short-cut for the B7004, which road detours west to serve Whithorn.
The road starts at a T junction with the B7004 a mile or south of Garlieston, slightly inland from Rigg Bay. It heads south, initially through woodland, but never far from the coast, with good views out across Wigtown Bay. After a mile or so a pretty little chapel in a field is passed, a hint at the religious significance of our destination. Passing just a smattering of farms along the way, we then come to a muddy TOTSO with an unclassified road from Whithorn.
Turning left the road drops down to the coast at Portyerrock Bay, before climbing again over the headland. The village of Isle of Whithorn comes into view ahead, initially with some grim council housing, but soon the road drops down to its terminus, again on the B7004, in the heart of the village, where pretty whitewashed terraces stretch around the harbour.