We'll be joining the excellent CoolTan Arts for their extraordinary overnight guided walk, the midnight version of the Largactyl Shuffle.

Starting at 11.30pm outside Tate Modern, and finishing as dawn breaks in a local park with meditation and yoga. There will be talks on the history of midsummer and on the history of mental health and those incarcerated at the old Bethlem Hospital. The walk also will have sound art created by CoolTan Artists with local sound artist Isa Saurez to be listened to on headphones during some of the walk.

Join friends from Southwark Greens on this unusual walk through London at night.