At a loose end in London

[Sullabylullaby]

I'm just wondering whether anything interesting (and free) is going on this weekend in London?

Or whether there is anything worth visiting (for free).

Not terribly interested in history/museums.

Would like a modern art display, any sort of street festival.

AIBU to think that there has to be something interesting for me to do tomorrow?

Tate modern is open every day and free. Then walk along the south bank, Gabriel's wharf etc. There is always something going on around there.

Whitechapel art gallery and then walk up through brick lane and its street and warehouse markets then into Spitalfields?

Thanks, could do that. What is in Whitechapel art gallery?