A booking bungle resulted in the Wallabies and Springboks staying in the same London hotel this week.
The Australians had booked into the Lensbury through World Rugby, while the Boks were inadvertently booked there by the Barbarians organisation, who did not realise the Wallabies would be there until Wednesday.
The two sides have been forced to work around their schedules so their field and gym sessions don't clash.
The Wallabies leave for Cardiff today to continue preparations for Sunday's clash with Wales.
South Africa face the Barbarians at London's Wembley Stadium before facing England at Twickenham a week later.