2 night UK break during half term - please help!

[Slippery]

Can only go from Weds to Fri (2 nights). Planning to do air bnb or similar. It's for me, DH and DS 15. We've previously been to Henley and Dartmouth - where else would fit the bill?

Prefer South/Central England.

Thanks.

Bath is lovely, but Bristol might be a good option with a 15yo DS. There's so much to do.
Teen nephew has enjoyed Brighton and Portsmouth. In Portsmouth we went to the historic dockyard, submarine museum and d-day museum.

Thanks, off to Google Portsmouth and Brighton!

Somerset is lovely, Cheddar Gorge, Wookey Hole (random), Wells and a day trip to Weston to blow away the cob webs (not that much pleasant about Weston but the tea rooms on the end of the pier are amazing and great in winter with the spray coming up from the sea!)