Wheelchair accessible Christmas light trail

[ReallyShouldBeDoingSomethingElse]

I'm looking for recommendations from anyone who has successfully had a trip to one of these places with a wheelchair. Places where I happily pushed a toddler in a stroller are often surprisingly inaccessible or difficult with a wheelchair.

Ideally looking for somewhere Beds/Herts/Bucks/Berks/Oxfordshire/Northamptonshire way

Hilliers Arboretum in Romsey near Southampton? May be a bit too far?
Not done it with a wheelchair but most of the paths are tarmacked.

We love www.ashridgehouse.org.uk/whats-on/ashridge-house-illuminated-2024/

I've done it a couple of times pushing a wheelchair and honestly I don't think there's a way to do it better, they put those black plastic walkways down where the paths get rough. I think one time we had to skip a small part as it was too muddy (heavy rain) but generally it's easy to get around.

Kew is also amazing but probably sold out by now!

Thanks for these suggestions.

I'm just having a look for tickets at Ashridge House now.