Well that was a waste of time asking, both of em fell asleep before birmingham, I had worcester woods and weston in mind for stops, drove passed both while they were sleeping, about 2mins after weston turn off eldest woke up and said he needed a wee so ended up in brent knoll, bit of grass for a picnic and little climbing frame park, not great but did the job. Coming home was a similar experience. Nevermind will bear your suggestions in mind for future trips.
Hotel was in camborne, we were visiting family in penzance, lots of driving up and down the A30 saw loads of lejog/joglers, quite fancy doing it myself but I’d be avoiding the A30, would hate to ride that.