Take the M5 to Exeter then take the A30 (signposted for Okehampton) at the last junction (J31)
You bypass Okehampton, Launceston and Bodmin.
Once past Bodmin - at the Innis Downs Roundabout - turn left on to the A391(signed St Austell). Contunue until you reach the A390, turning right at the traffic lights (signed St.Austell).
Follow the A390 around St Austell, past the Tesco and Asda superstores, until you reach the roundabout by McDonalds. At this roundabout turn left onto the B3273 (signed Mevagissey).
One mile past the village of London Apprentice, You'll find the entrance to Sun Valley on your right