After a couple of days of hiking on the coast path we opt for a change today and take a drive across to the other side of the peninsula and the south Cornwall coast.  Most coast to coast drives here take you over the more barren landscapes of middle Cornwall, either over Bodmin Moor or through hills scarred and reshaped  due to years of quarrying. We head first through St Austell and down to the pretty harbour of Mevagissey, a classically shaped Cornish fishing village where narrow winding streets between cramped buildings soon rise up the steep sides from where houses of all sizes look sternly out to sea. This is…