Bristol
You can ride local, do interesting touristy things, S Wales, N Devon, Cotswolds etc – or do you really fancy all that driving in the UK rathr than doing things?
redthunder – North Shields would see you 2 hrs from Edinburgh (with all that beautiful countryside in between), minutes from Tynemouth (with castle, priory and great beaches), 70 miles from the Lakes and not far from Beamish. Seems fair enough!