Is this fruit edible, please?

If it looks like a chestnut it may well be.
It's hard to tell from the leaves but are they palmate with 5 - 7 leaves?

Horse chestnuts are mildly poisonous to humans.

Walnut?

It looks like it might have a grub or two inside it
Not a walnut or chestnut.
Break one and look at the inside.

Try the plant identifier app you can down load on a smart phone, you just take a picture and it will tell you what the plant is

Yes, do what EllanVannin suggests. If it’s a walnut, it will be immediately obvious. It doesn’t look like the sweet chestnuts I used to have in my garden - they were spiky enough to need gardening gloves to handle, but they may be a different variety.

They look for all the world like Lychees, except for the colour.

I thought it was a conker!!!

They could be Cob Nuts, very popular here, and very tasty. There are lots of trees in the road my doctors surgery is in and you see people collecting them when they fall.

Thanks for all the helpful suggestions. I'm off out with the dog soon so will pick one and cut it open.

ellenvannin my first thought was lychee then I thought no it’s U.K. can’t be

I don't think they're cobnuts, which are in fact hazelnuts. We have hazel trees in the garden and the squirrel deposits the leftovers all around and buried his winter supply; they have a smooth husk.

oldgoat

Thanks for all the helpful suggestions. I'm off out with the dog soon so will pick one and cut it open.

Let us know; if it's a sweet achestnut you could have a good supply for winter.

The fruit looks a bit like a lychee but the leaves are quite different. The leaves of a lychee tree are elongated and glossy green.

They look like conkers to me!

I think they are too!

They are not spiky enough for conkers, and they are brown, too. The outside of cockers is green.
I think they are going to be walnuts, but have to get help to pick one because I am vertically challenged

If you can break into one they would be easily identifiable.

There's a tree near us but it's in someone's garden; I can't see it from here unfortunately.

If it is a Walnut, you will need gloves on to peel it, as the thick husk gives off a sap that stains your hands the same colour as Nicotine does!

Definitely not cob nuts. I've got a bag of them that I collected yesterday and they're nothing like the photo. Like Whitewave, I wondered if they could be walnuts.

No, they're definitely not walnuts. We had a tree in our garden when I was a child**. Walnut husks are smooth and green. The leaves are completely different, too.

I tried reverse searching on the photo but it didn't come up with anything remotely like it!

(**I really, really miss that walnut tree. Fresh walnuts are delicious. Wish I'd planted one where I am 20 years ago. We'd be swimming in walnuts by now )

I'm all agog for when you can get one down and open it up for us to have a look at, oldgoat...

I tried reverse searching on the photo but it didn't come up with anything remotely like it!
How did you do that, MaizieD?

I still think they're conkers or sweet chestnuts. They will still be immature.

Horse chestnuts are less prickly than sweet chestnuts.

There are different types of lychee, which are grown in this country quite successfully----probably not in the cooler NW where I am, but definitely South.