NSW has recorded 30 new locally acquired cases of coronavirus on the first day of a 14-day lockdown for large parts of the state.
Premier Gladys Berejiklian has confirmed all 30 cases have been linked to the Bondi outbreak, while 11 of them were self-isolating throughout their infectious period.
A further three cases were in isolation for part of their infectious period.
The new cases bring the outbreak to 110, while a further two local cases remain under investigation.
More than 52,000 people were tested and 12,881 received a vaccine dose in the 24 hours to 8pm on Saturday.
NSW Chief Health Officer Kerry Chant said 10 of the new cases are linked to Great Ocean Foods in Marrickville, bringing that cluster to 11.
One case linked to the seafood distributor is a flight crew attendant with Virgin Australia who tested positive on Saturday night.
Anyone who received a delivery from the business between June 21 and June 25, plus their household members, are being urged to contact NSW Health, immediately isolate and get tested.
Other cases of concern to authorities are a person who tested positive after attending the COVID-19 vaccination centre at Westmead Hospital on June 22, and a close contact of a worker at the Granites gold mine in central Australia, who tested positive in the Hunter New England region of NSW.
"I can assure the community that this case was not infectious in the community and did not present any risk to the community of NSW," Dr Chant said.
She said the case is believed to have contracted the virus in Queensland.
Despite the jump in new cases, Dr Chant is reassured they are all linked.
She said the lockdown of Greater Sydney, the Blue Mountains, Central Coast, Wollongong and Shellharbour, which is scheduled to end at 11.59pm on July 9, would be sufficient to bring the outbreak out of control.
"Obviously, we have to be very cautious and look at the data every day but if we all take this very seriously, we maintain those testing numbers, then two weeks may be sufficient to have that comfort," Dr Chant said.
Ms Berejiklian said she expected case numbers to increase in the coming days, given the infectiousness of the Delta variant.
"Case numbers are likely to increase even beyond what we have seen today because we are seeing that people in isolation, unfortunately, would have already transmitted to all their house contacts," she told reporters on Sunday morning.
"The measure of our success won't be so much the people in isolation get the disease but the measure of our success will be to limit the number of people who went out and about into the community with the disease."
NSW residents in the lockdown zone are only allowed to leave home for work that can't be done at home, to shop for essential items, for exercise, to seek medical care or for caregiving or compassionate reasons.
Anyone in NSW who has been to Greater Sydney since June 21 is also being asked to stay at home for the lockdown period.
Exercise outdoors is allowed in groups of up to 10 and COVID-safe funerals can proceed with up to 100 people.
Weddings are allowed on Sunday with restrictions in place but must be cancelled from Monday.
Asked if she delayed calling a lockdown because she wanted to keep her reputation as a premier who keeps the state open, Ms Berejiklian replied: "I do not regret a single decision we have taken."
"I have never cared about what people think about me, I care about keeping people safe," she said.
Meanwhile, NSW Police issued more than 15 fines on the first night of lockdown.
A family from Sydney's eastern suburbs were fined for travelling to the Hunter Valley for a sporting event, while a cafe owner and her staff in Illawarra were fined for refusing to wear masks.
© AAP 2021