The Spaniard, who was born in Chile, said the robbers had driven him for over an hour, at which point he asked where they were taking him. One of the men then revealed a firearm and told him to produce money. He handed over around R500.
He said the driver became "incredibly angry", telling him, “You Europeans come here and exploit all us”. He said the driver then became nervous and pulled the car over.
Campo said he was then hurled from the car, his head striking the door. He injured his back as he fell against a street light.
"I am feeling better and my injuries are improving," he said, adding that he still had difficulty sleeping since the traumatic experience.
He said the incident "should never have happened", but added that he still enjoyed the city.
"Crime happens all over the world and I was unlucky. I do think that tourists should be made aware of these threats though," he said.
"Cape Town is a beautiful city worth visiting, which is hosting a great conference on water to help prevent Day Zero in other parts of the planet."
Police spokesperson Capt FC van Wyk said an investigation into the incident was ongoing: "A case of kidnapping and armed robbery was opened for investigation at Table View SAPS on October 14. No arrest as yet. Investigations continue."