The South African side had too much class for Oceans7s, winning 43-0 after leading 14-0 at the break.
Their second match, against Georgia saw a similar score line, with the South Africans leading 14-0 at the break and winning 41-0. Zenay Jordaan scored the first three tries of the match for a hat-trick.
In their final match of the day, Paul Delport's squad had too much class for Tunisia, beating their fellow African side 43-0, again scoring six tries.
"It was a good day for us. We scored 124 points and conceded none, so from that perspective it was very productive. The weather conditions were not great either, it was raining a lot during the day," Delport said.
"We realise that the opposition was not the greatest, but the encouraging thing was that we kept to our standards and not dropped down a level."
They still have to play Ukraine on Thursday morning in their final pool match, with the East Europeans also showing strong form winning all three their pool games.
"The game against Ukraine will be our biggest test. We come to tournaments like this to be tested and they will do that," Delport said.
"We had no injuries and all those coming back into the team did well. I am pleased to see Zenay back. She got injured in July last year and is really back with a bang. The two new players also did well, so overall it was a pleasing effort and I am proud of the squad's effort."