Removing the /blog page from my site

Hi,

I see people coming to my site via https://www.robinwyatt.org/photography/blog. This is not a page I maintain (I have a ‘journal’ page which is what you might regard as a blog), and I see that stuff gets put into it that I don’t want to be there. It actually looks like a bit depository for random junk from my site, including things I uploaded in a draft state. Even after switching to ‘private’ and ‘draft’, I still see this material at the /blog, even when signed out of admin. What can I do about this? I’d actually prefer to have no https://www.robinwyatt.org/photography/blog page at all, and for it to disappear from Google!

Thanks in advance!

Robin