My general itinerary: London, Bath, Bristol, Cardiff, Pontcysyllte Viaduct, Shrewsbury, Lake District, Edinburgh, York, Hull.
Sites I want to see are the baths in Bath. Iron Bridge in Telford. Ride a steam railway. See Caernarfon castle and the Pontcysyllte Viaduct. Hike a bit in the Lake District.
Visit friends and relatives in Bristol and Shrewsbury.