I’m sure you’re already in the Facebook Group, where this was posted, but if not, here you go:
https://www.facebook.com/events/722187901176321/?ref_newsfeed_story_type=regular&source=1
Basically, there’ll be people in Regent’s Park, for those who want to. Or, there’ll be jams also happening indoors at the Albany, the Castle, and at the George.