Australia Day 2015: A look at the celebrations in Canberra

Thousands of Canberrans turned out to enjoy official Australia Day celebrations across the national capital.

Rond Terrace next to Lake Burley Griffin hosted the national flag raising and citizenship ceremony, while Stage 88 had plenty of family entertainment for the public holiday.

Little Madison Irving joined her father to see the packed program of free children's activities at Commonwealth Park and Regatta Point.

The large number of cars trying to park in the area caused some traffic chaos on nearby Commonwealth Avenue throughout the day.

The traditional 21-gun salute added some drama to the start of the official flag raising ceremony.

It also spooked a large colony of bats who were frighted out of their usual hiding spots in Commonwealth Park.

Everyone seemed to be adopting national pride with dozens of people dressed up in green and gold, or draped in the Australian flag.

Jess Owens and Laura McIntyre travelled from Kyneton to visit the Spirited exhibition at the National Museum of Australia and join the festivities in Canberra.

But not everyone was happy with the celebrations to mark the first fleet from Britain arriving in 1788.

Many Indigenous people described January 26 as a day of mourning for Aboriginal people.

A total of 25 people from 15 different countries pledged allegiance to Australia at the national citizenship ceremony presided over by Prime Minister Tony Abbott.

The Canberra ceremony echoed more than 330 citizenship events held around the country.

Those taking the oath in Canberra included Hilary Kay from the British television show Antiques Roadshow.

A roar overheard signalled the Roulettes' return to Canberra for a display to mark the country's birthday.

The planes flew in formation to take their message across the national capital.

Adrian Garrido Sanchis and Marta Yebra Alvarez decided to join their Australian-born sons as new citizens.

Dr Alvarez is a research fellow at the Australian National University where she has been studying the impact of bushfires.

"It was a very emotional day for us, and we were very lucky to be here, as only 25 people were made official citizens at this national ceremony," she said.

For the first time people were encouraged to sing Advance Australia Fair in unison at midday as part of festivities for Australia Day.

In Canberra, hundreds of people got to their feet at Stage 88 to sing the first verse of the national anthem.

After becoming an Australian citizen in 1950, Mr Kustra attends citizenship ceremonies every year to celebrate his adopted country.

"I came here with the Snow River Project in 1948, and I love it," he said.

This year's Australia Day activities featured lots of family entertainment and fun to teach the younger generation about the importance of the national day.