Hundreds gathered by the water at Bondi and Manly on Saturday night to party before Covid limitations were relaxed on Monday for double-jabbed residents.
Massive crowds flocked to "The Office" in Manly - a popular waterfront spot near the wharf - where music was booming and an improvised dance floor was set up.
Revelers were photographed crammed together and maskless as they belted out ABBA tunes with drinks in tow while some were reported urinating.
Similar scenes took place at Bondi beach after police were required to disperse huge crowds who started congregating throughout the day.
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Several move-on directions were delivered to residents while no fines were issued notwithstanding public health orders being in place until Monday.
Police were pictured moving the raging crowd on only after 7 pm with reports of revelers drinking alcohol against council limitations.
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Under Covid-19 limitations, just groups of five fully vaccinated adults are permitted to gather outdoors until the state's stay-at-home orders are eased on October 11.
Though, residents were desperate to get a taste of regular life again as Sydneysiders marked 15 weeks being in lockdown.
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The reaction was mixed on social media, where pictures and footage of the wild scenes were shared.
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"This is anarchy. Yes, alcohol can be consumed there, but police aren’t powerless- there are also public health orders that can be enforced," wrote news publisher Manly Observer.
"Where are the police?", asked one local, while another crashed the revelers for being "selfish" and "privileged".
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Others admired the large groups of young people for having a good time on a Saturday night.
"This is what happens when people are caged up like animals," wrote one man.
"Is 28 hours actually going to make any difference to the outcome?," pointed out another.
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"Let’s just put things into perspective. It’s been a horrendous couple years for the youths especially. They are in the prime of their life and are certainly very excited the world is about to open up next week and they are in a highly vaccinated LGA. Enough of the generational warfare," concluded another.
Double vaccinated residents will be able to experience bigger freedoms from October 11 after NSW hits its 70 percent vaccination aim this week.
As of Monday, up to ten visitors will be permitted to gather at a home where all adults are vaccinated, while outdoor gatherings have a 30 person limit.
Pubs, restaurants, and cafes will open back up with beachgoers no longer having to rely only on picnics for food and drinks.