We would need access to RAW files exif to verify the date. And the focal length. If taken with a 600mm or so lens, no wonder it looks packed.
However, if the photos are proven to be taken on that date, I will admit I was wrong and apologize.
It clearly was taken with a long lens, and that
is deceptive. Here in London, at the outset of the crisis, a lot of photojournalists were filing long-lens pictures of 'crowded' London parks. Several local authorities proceeded to close them. Recently they were nudged by the government to open them up again. I'm in favour of a lockdown, but I think parks and beaches should remain open.
But my point is that the 'fake news' stories that appear in the right-wing press are normally more fake than the stories they attack. (I feel the same about the 'crying nurse' story — it seems to me she was a genuine nurse with a genuine grievance.)