Pentewan is about 6 miles from St Austell station, and 2 hours by car from Exeter. The A30 is the faster route. Head to St Austell. Then right onto the A38. Take the Mevagssey turn to the left at the double roundabout. After 4 miles, you will see the sign to Pentewan village.
Use Google Maps to aid you on your way. For those with Sat Navs, the postcode is PL26 6DG.