I'm currently living in Exeter and my parents will visit me for two weeks.
We'd like to spend our time mostly in the South region but I'm not sure what route will be efficient. I'm attending a conference in Cambridge, so we're going to start from there. What I'm thinking now is Cambridge - (Birmingham?) - Wales (Cardiff) - Bristol/Bath - Exeter (stay at my place for few days while travelling to Dartmoor) - Plymouth/Penzance from Exeter - Brighton or canterbury - London (Heathrow).
We are travelling by bus/train and I'm wondering the plan is feasible (for two weeks).