And in Jubilee Gardens by the Eye a freerunning team will demonstrate their death-defying leaps and stunts on a 40fthigh course.
From 8-10pm on Saturday night at The Scoop a Venetian Carnival Ball will feature pierrots, burlesque, variety clowns, fire, frogmen, magic and harlequin dancers.
The Thames Festival, now in its 11th year, runs alongside the Great River Race on Saturday afternoon, when 300 teams in an assortment of craft row 22 miles from Ham House to Island Gardens.
There will be more river races on Sunday which will feature historic Thames watermen.
On both evenings fires will be lit on the foreshore outside the Globe.