The A750 was a short A-road at the tip of the Machars peninsula.
Starting on the A746 towards the south of Whithorn the road ran south- then southeastwards across the undulating land of the Machars. Presently, at Doon of Arbrack, a T-junction was met where the A750 had to TOTSO left (right was the A747 along the west coast).
Isle of Whithorn
Continuing along a straight road the terrain became flatter before the road entered the village of Isle of Whithorn (no longer a true island). On reaching the coast the road met the B7063 before running around the edge of the harbour to end at the pier.
Although the A750 lasted until at least the 1970s the road has since been downgraded and is now part of the B7004.