Suggestions for holiday location please

[TeenDivided]

We want to go away for a relaxing week in the Easter holidays.

To an area where we can do days out:
Like
Animals, Seaside, Woods, Rivers, Cafes, Small museums, Pottering around
Dislike
Cities, crowds, big museums, long hikes, sitting on beaches

So an ideal place would have maybe 2 animal related places to visit, a forest to walk in, a beach or lakeside area to visit, some small museums taking 1-2 hrs, maybe an English Heritage or National Trust place with gardens.

Not Hants / New Forest. Preferably not more north than York, but could be convinced otherwise.

I need some starter suggestions as my brain is mush these days.

Yup that's one of the top reasons - we've never been there.

North Wales? Loads to see and do but plenty of quiet chilling places.
You are never far from an adventure
Some ideas here
www.donthibernate.co.uk

Kent or East Sussex

Canterbury to walk around and visit the cathedral
Dover Castle
Hever Castle
lots of NT properties
several zoos or other animal parks
beaches if you fancy a day at the sea side
Bedgebury or Bewl Water to have shorter walks or search South Downs for short walks
If you are into Stand-up paddleboarding Tonbridge has hire companies to SUP-ing in the river
Brighton