Scotland - most of it is lovely. Do avoid the midge season.
Wales - lots of history, scenery, honey ice cream.
England - we love Northumberland; Ambleside, Rydal Water, Helvellyn
Lots of museums across the UK if weather turns wet. Plenty of beaches or strolls by canals/rivers; all due to hour economical history. Ironbridge? Bristol, Bath.
North Norfolk coast - a bit wild and woolly
A city break means not walking far. Norwich, Cambridge, Oxford ........
Cathedrals - the UK is full of 'em. Most have good towns built around them.
South of England: we love Brighton, Hove, Rye, Chicester; Clovelly ........... tell me what you like to do in your spare time and I can sell you somewhere in the UK.
I have looked at Torquay ............ I could do with a week watching the waves from a posh balcony
with room service.