Sydney's eastern suburbs have become a hotspot for coronavirus and recorded the highest number of positive cases in the state, according to the latest NSW Health data.

Key points: The Waverley and Woollahra local government areas have a high number of cases

The Waverley and Woollahra local government areas have a high number of cases Those LGAs include some of Australia's most expensive post codes

Those LGAs include some of Australia's most expensive post codes All beaches in Waverley have been closed in a bid to stop COVID-19 infections

The Waverley local government area (LGA), which includes the suburbs of Bondi, Bronte, Tamarama and Vaucluse, has 105 of the total 1,405 cases of COVID-19 in NSW.

Nearby, the leafy Woollahra LGA, which includes many of Australia's most expensive suburbs like Point Piper, Paddington and Double Bay, has had 66 confirmed coronavirus infections to be fourth.

The Sydney CBD (69 infections) and the affluent northern beaches LGA (68 infections) are also in the top four.

Last week, NSW Health revealed there had been a coronavirus outbreak among backpackers in the Bondi area when 33 people tested positive after attending two events on March 15.

One was at the Bondi Hardware restaurant (between 7.00pm and 9.00pm) and the other was at The Bucket List at the Bondi Pavilion (between 4.00pm and 11.00pm).

South Eastern Sydney Local Health District's director of public health Mark Ferson said the cluster of infections was not related to any specific accommodation venues in the area.

He advised anyone who attended the events to be alert for symptoms and seek testing at their GP or a specific COVID-19 clinic if they develop.

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Meanwhile, last Friday and Saturday, thousands of people packed Bondi Beach, drawing criticism from around the world, and left Waverley Council with no choice but to close all its beaches.

Some people crossed barriers to access Bondi Beach after it was closed. ( AAP: Joel Carrett )

Waverley Mayor Paula Masselos said additional spots in the area had been closed in response to the high rates of COVID-19 in the LGA, including Bronte ocean pool, all outdoor gym stations and Waverley playgrounds.

"I've also had a lot of people asking me what we are doing about the backpacker hostels in the area," Ms Masselos said in a statement.

She said staff were carrying out on-site inspections to ensure backpacker hostels were complying with planning approvals, and issuing fact sheets from NSW Health.

However, Ms Masselos said council staff were "awaiting advice from NSW Health on their backpacker strategy".

She said Waverley Council had now received complaints of high numbers on the popular Bondi to Coogee coastal walk, which remained open.

"There are people in the community who want to make the most of our beloved coastal walk during this time, but it's not safe if people aren't practising social distancing," she said.

Bill Bowtell AO, an adjunct professor and strategic health policy consultant at the University of New South Wales, said while it was unacceptable for people to be out and about at close proximity, backpackers were no safer in their accommodation.

"They are in hostels with many to a room," he said in a tweet.

"It's hard if not impossible to get home and [they are] not communicated with in non-English languages."