Having holidayed in the UK most of my life. I have come to the opinion that anywhere can make a nice holiday.
If you have a car then within 1 hours drive of anywhere you can probably find either beach or beautiful countryside or both, a museum, a stately home with gardens or a castle, somewhere for an expensive day out such as theme park, zoo or aquarium. Some thing small and historical, monuments, steam train, ruins, etc. As well as leisure centres, swimming pools, golf, soft play, playgrounds etc And shopping centres, town centres, village pubs, etc etc.
(With the exception, perhaps of central London, which of course has its own attractions)
It doesn't take long to find 6 activities for a 7 night holiday.
Think about where you live. I bet you could find 6 day trips for a tourist to do. The place is boring to you because you live there and have done it all, but for a person looking at it with fresh eyes, I bet there are loads of activities.