other end of Blackwater, you come to a roundabout at Three Burrows. Get on the A30. It’s single carriageway mainly and ok to cycle on. In the future, they are going to dual this stretch and I’m going to have to sort out a better cycling route!
You could turn off at Three Burrows onto the A3075 towards Newquay, but I think that’s taking you out of your way. Some folk have gone that way, then worked their way east back along the A392 through Quintrell Downs to pick up my described route.
Follow the A30 to Zelah - turn off the main road and go through the village Old A30 - and out again for a short time back on the A30 turning off left through St Newlyn East.
Cross the A3058 at Gummow’s Shop and cross the A392 at White Cross and go through St Columb Major.
I am plotting Mick F route from LE to St Columb Major. A couple of concerns - I have been told to avoid A30 as it is a very busy road. Is the A30 ok traffic wise between Penzance and Hayle ? Is the A30 ok traffic wise between Blackwater and St Columb Major ? Is there a hard shoulder ?