Take the A30 towards Penzance and then follow signs to Lands End.
About 8 miles from Penzance you reach Sennen and at the roundabout opposite the school take the third exit down the hill to Sennen Cove. As you go down the steep hill the road bends around to the left and follows the coast. You pass the Old Success Pub on your left and then the fish and chip shop and after a further 200 meters you will see The LittleBo Cafe and the Old Boathouse store.
Harbour Mews is the road between LittleBo Cafe and Old Boathouse store.
1 Harbour Mews, Sennen Cove, TR19 7DD is directly in front of you.