It's part of
The Big Lunch on 19th July...
"Imagine a summer's day on which millions of us, throughout the UK, sit down to have lunch together, with our neighbours in the middle of our streets, around our tower blocks and on every patch of common ground. The food, entertainment and decorations we will have either grown, cooked, or created ourselves. This will be a day to break bread with our neighbours, to put a smile on Britain's face."
