If you’re going to splash out on one special stay in Cornwall, make it this. Coombeshead is a working farm, guesthouse and Michelin-recognised restaurant rolled into one, set across 66 acres of meadows and woodland near Launceston. Chef Tom Adams rears his own pigs, bakes his own sourdough and fires almost everything over wood — dinner is a set menu using ingredients that were literally walking around that morning. Book well in advance and stay the night if you can; the breakfast alone is worth the trip.