"I'm so envious of New Zealand. You got your lives back," another wrote.
The comments flooded in from Canada, Sweden and Ireland.
"New Zealand's disastrous failed attempt at #zerocovid continues to be a warning message to the world," one Swede wrote sarcastically.
"Would love to see Crowded House here in Canada one day when it's safe," another wrote.
The pictures are a stark contrast to the experience in Europe where a third wave is well and truly under way.
In Italy, authorities have announced a partial lockdown for much of the country following a fresh surge in infections.
Schools have been forced to close, as have restaurants, bars and museums after more than 27,000 new cases and 380 deaths were recorded on Friday.
The populous northern regions including Lombardy, which surrounds Milan, as well as others including Lazio, which surrounds Rome, will be designated "red zones".
The lockdowns come one year after Italy became the first European country to face a major outbreak and are a reminder of the grim scenes at major Italian landmarks that were left deserted during previous harsh lockdowns.
Prime Minister Mario Draghi had earlier warned of a "new wave" of coronavirus infections.
A majority of regions – including those containing Rome and Milan – were classified by Health Minister Roberto Speranza as high-risk red zones from Monday, with all residents told to stay home except for work, health or other essential reasons.
The extra restrictions will last until Easter, according to Draghi's office. During the Easter weekend of April 3-5, the whole of Italy will become a red zone.
"More than a year after the start of the health emergency, we are unfortunately facing a new wave of infections," Draghi said during a visit to a new vaccination centre at Rome's Fiumicino Airport.
"The memory of what happened last spring is vivid, and we will do everything to prevent it from happening again."
In German cities, coronavirus restrictions saw thousands take to the streets in protest despite warnings from the health authorities of a third wave of the virus.
The Guardian reports there were more than 12,000 new infections in Germany on Saturday, a rise of more than 3000 from the previous week.
Regions of France are in the grip of a new spike in cases. The situation there is so grave that one Parisian is admitted to an intensive care bed every 12 minutes, night or day, Health Minister Olivier Véran said.
French President Emmanuel Macron has imposed curfews on a number of regions facing a sharp spike in cases.
Late last year, the World Health Organisation's special Covid-19 envoy warned of such an event, predicting Europe could face a third wave of the pandemic if governments repeated the mistakes that had led to the second.
"(Government's) missed building up the necessary infrastructure during the summer months, after they brought the first wave under control," the WHO's David Nabarro said in an interview with Swiss newspaper Solothurner Zeitung.
"Now we have the second wave. If they don't build the necessary infrastructure, we'll have a third wave early next year."
The third wave is devastating for Europeans. Seeing Australia and New Zealand thrive makes it all the more difficult.
