Revellers up and down the NSW coast have taken part in an Australia Day tradition as well-worn as thongs and green zinc: packing in "like sardines" to celebrate their national day.
Sydneysiders flocked to the city centre in their hundreds of thousands on Sunday to enjoy a celebration billed as the biggest since the Bicentenary.
Organisers expected 180,000 spectators to enjoy concerts and a fireworks show at Darling Harbour alone, and families were snatching up the best vantage points by mid-afternoon.
Eleven-year-old Natasha Sotrios and friend Scarlett Ridley, seven, came decked out in green and gold.
"It's just Australia's day. It's our day," Natasha said.
"It's a very, very special day," Scarlett chimed in.
Roseville mother-of-two Belinda Pratley said she made the trip to the harbour foreshore every year.
"I think it's a day that we can come together as a country and celebrate (our) unique country, our multicultural lifestyle," she told AAP.
She planned to head to Hyde Park, which was already nearing capacity by 4pm (AEDT).
Children jumped about on a giant bouncy Stonehenge while a Wiggles concert enthralled infants perched on their parents' shoulders.
Down south at North Broulee beach, near Batemans Bay, the head-count was lower but it was no less crowded as nearly 300 surfers attempted to ride a single wave.
Local surf instructor Glenn Hall said he wasn't sure if the wave-riders had managed to set a world record - the official record for most surfers riding one wave was set in the South African city of Cape Town in 2009 by 110 surfers - but he was chuffed at the turnout.
"It was massive, I felt like we were in Bondi," he told AAP.
"At one end we had all the experienced surfers packed in like sardines and at the other we had the learners ... (the kids) had a ball out there, just showing the more experienced surfers how it's done really."
He said about 5000 people came to watch and to join in the inevitable Australia Day barbecue, raising more than $10,000 in the process for the local surf life saving club and the South Coast Westpac Rescue Helicopter.
More than a thousand people snapped up the sausages at another barbecue, atop Mount Kosciuszko in Thredbo, raising more than $2500 for Children's Hospital Foundations Australia.
Back in Sydney, a pregnant Bec Bowron was hoping for a similar show of philanthropy.
She sat in Market Street in the CBD with a cardboard sign asking for spare change towards a bed for the night and food.
"I've got two kids and my ex-partner's part Aboriginal. Before I met my ex-partner I used to think Australia Day was beautiful," the 24-year-old told AAP.
"I celebrate it because I was born here but in a way I do think it's not the best thing to be celebrating because of what happened a long time ago," Ms Bowron said.
She said passersby on Sunday were "in the celebrating mood but not to hand out cash to people".