It's a Privately Owned Public Space, there's far too many of these.

https://thebristolcable.org/2023/04/temple-island-latest-cre... https://www.theguardian.com/cities/2017/jul/24/revealed-pseu...

It seems to be a bit complicated in this location -- because the "private" owner is actually a public body. I do also wonder about existing public rights of way in the area, as I don't believe property owners can restrict photography on public rights of way, unless it's violating their privacy.

It's important to realize that this is "public ground" by pretty much any common definition. As in: it's a street, with footpaths and cycle-paths and whatnot, a Wetherspoons and other shops, etc.

In particular, it's NOT some sort of semi-enclosed space that also happens to be accessible by the public. That would be quite a different scenario.

That seems to be disputed. It's owned by a public organization, no?