Opposition parties who joined forces after the nationwide rallies against Zuma on Friday, held hands as they led their supporters through the streets of the city and held a rally at a field outside the Union Buildings
Police said the event had been peaceful.
“You came out in large numbers and sent a strong message,” EFF leader Julius Malema told the crowd.
“We don’t care whether you are white, whether you are Indian, whether you are black. We are here to defend the future of our children.
“We are united on the purpose of winning back our beautiful country.”
A string of events throughout the day put a further blight on Zuma’s not-so-happy birthday. They included: