South Australia's COVID-19 border restrictions with NSW and the ACT could be lifted in time for the upcoming school holidays, Premier Steven Marshall says.
Mr Marshall said he could envisage those quarantine arrangements being scrapped in time for the two-week school break, which starts at the end of September.
That would also provide a change to travel arrangements for the October 5 public holiday.
"But we would need to see the (infection) numbers continue to track down," he said.
"The ACT is not a problem, it's NSW, but again we are super pleased to see NSW tracking down.
"There was a spike a few weeks ago....but the authorities really put a net on top of it very quickly."
SA has moved to lift some local coronavirus restrictions, with the number of people allowed at weddings and funerals to increase from 100 to 150 from Saturday.
Pubs and restaurants will be free to serve food and drink to people seated at bars, while the general advice to all people to work from home where possible has been dropped.
However, businesses are still advised to have measures to avoid a COVID-19 outbreak such as staggering start times and dividing the workforce into distinct teams.
From this weekend larger crowds will also be allowed at AFL games with the increase from 10,000 to 15,000 for Adelaide Oval.
Mr Marshall said he expected that limit to continue to move up to a top of 25,000 in coming weeks.
Chief Public Health Officer Nicola Spurrier defended the state's conservative approach to lifting restrictions, largely because Victoria still posed a significant risk.
"While things are vastly improved to where we were three weeks ago, it is much safer to do this incrementally," she said.
"It's quite obvious when you look at New Zealand, where they had eliminated the virus, it's still possible to have that virus come back.
"If you have no defences in place then it's really a very short time before those cases spread."
SA reported no new coronavirus infections on Friday, leaving the state's total since the start of the pandemic at 463.
There have now been no new cases for 12 days, while the state also has no active infections.