South Australians can still surf, walk along the beach and exercise in parks, the Premier says.

Key points: Steven Marshall is encouraging South Australians to exercise within social distance guidelines

Steven Marshall is encouraging South Australians to exercise within social distance guidelines There has been outrage on social media as community members post pictures of people outdoors

There has been outrage on social media as community members post pictures of people outdoors SA authorities will meet before making a decision on whether to further tighten social distancing rules

Steven Marshall's comments come as the state records its lowest new infection count since March 21, and amid the emergence of people trying to police the behaviour of others on social media.

But with only 12 cases of COVID-19 announced yesterday, Mr Marshall said he was pleased with the public's compliance to social distancing rules, which he stressed were aimed at crowds rather than people trying to stay active.

"We're not saying to people they can't go out surfing, they can't go out swimming or jogging or for a walk along the beach, or taking the dog for a walk around the park," he told Ali Clarke on ABC Radio Adelaide.

"In fact, we actually want to see people engage in exercise."

Social media pages and activity groups online have interpreted the state's directions differently, however, with individuals posting abuse and even threatening one another for visiting beaches or exercising in parks.

"I know on social media people like to take shots [photos] and say, 'Look at all these people,'" Mr Marshall said.

"But most of them in those shots were essentially walking a dog, or walking along the beach, and there's nothing wrong with that.

"It's just about keeping clear of other people at this point of time until we get on top of this issue."

Mr Mashall said he was pleased, in general, with the way South Australians had behaved under social distancing restrictions. ( ABC Radio Adelaide: Malcolm Sutton )

Restrictions must have 'balance'

Mr Marshall said the State Government was yet to decide whether it will adopt the national cabinet's latest advice on social distancing as an enforceable direction, which is not to congregate in groups larger than two in or outdoors.

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Gatherings of more than 10 people would remain an offence in SA, however, and those gatherings must also be restricted to one person per four square metres.

"I think people are taking it very seriously, but we've got to get the balance right in our state," Mr Marshall said.

"There are implications with further social isolation, essentially locking people up in their homes for long periods of time.

"It's got to be sustainable and that's what we are going to be looking at before we make any further moves with regards to direction."

Don't travel for Easter

Mr Marshall did, however, support regional mayors and MPs who, ahead of the coming Easter break, requested that people did not drive to the regions for holidays.

"[SA chief public health officer] Nicola Spurrier has made it clear, this is not an Easter to go away on a holiday with the family," the Premier said.

"She's been extraordinary clear on that and we've seen mayors from right across the state echo that."

Victor Harbor GP Cherie Price said the South Coast in particular was vulnerable to coronavirus, with a significant proportion of its residents aged over 80.

Dr Price said it would be "excellent" if people stayed away, but, if they insisted, they needed to be as self-sufficient as possible.

"If they could bring their own food, stay away from anywhere that some of our older people still need to go to, such as supermarkets or the bank or the pharmacy."

No time to relax

Mr Marshall added that there was some cause for optimism over SA's progress at slowing the spread of coronavirus, and said the state had the second highest testing rate behind the United Arab Emirates.

But, he said, South Australians needed to "keep their foot down".

"We're pleased with where we are at the moment," he said.

"We don't want to see any relaxation whatsoever, but before we go to the next level, we need to get the proper health advice."

Mr Marshall said the Government would meet with Ms Spurrier and Police Commissioner Grant Stevens before it made a decision on the latest national advice on social restrictions.