M5 south to A38 Plymouth, follow A38 over Tamar bridge signposted to Liskeard.
After 10 miles take a left on to the A374 Looe road at the roundabout, 1 mile on turn right on to the A387 Looe road, after a further 2.5 miles at Widegates bear left on to the B3253. (You stay on the same road but the road number changes, that’s Cornwall for you!)
When you are nearing Looe, the Looe Bay Holiday Park is on your left, quickly followed by the Coddy Shack chip shop. Take the next left at the signpost for Barbican, Plaidy and Sunrising, there is a floral display built around a boat on the left at the junction.
Follow Barbican Road for 3/4 mile, passing the Barbican Inn on the right and then a primary school on the left.Turn right into Barbican Hill just beyond the turning to Bodrigan road on the right but before the Spar shop on the left. Follow this road which gradually gets steeper and steeper and narrower until you reach some black bollards that restrict the width of traffic to 6ft 6”, just at the entrance to the Klymiarven Apartments in the trees.
Penwyn is 6 houses down after you have been through the bollards, on the right hand side of the road. The parking is parallel to the road.