Memorial walk an Anzac Day feature in SA

A $10 million memorial walk to pay homage to a century of service by thousands of Australians in armed conflicts around the world will open in time for this year's Anzac Day services in Adelaide.

The walk runs from the city's War Memorial, in North Terrace, to the Torrens Parade Ground, the gathering place for many military units as they prepared for overseas deployment in years gone by.

It has been built largely on land given up by Government House in one of the most significant developments in recent years to honour the country's servicemen and women.

About 6000 current and former military personnel will March in Adelaide on Monday in the annual parade that continues to attract thousands.

It will follow the annual dawn service where crowds have topped 10,000 in recent years, including a growing number of young people, something welcomed by the Returned and Services League.

"The remarkable increase in youth participation has added an important dimension to our annual program of commemoration," RSL state president Tim Hanna said.

Along those lines, hundreds of young people from service groups will stage a vigil at the War Memorial in the 12 hours before the dawn service and several thousand are expected to take part in Camp Gallipoli, where school students set up swags and sleep in the open to experience something of what the Anzacs did more than 100 years ago.

Year 12 student Benson Macallister, 17, took part in Camp Gallipoli last year and was excited to do it again in 2016.

"World War I is a significant part of Australian history and it is so important for young people to remember the suffering that the Anzac soldiers and their families went through," he said.

Fellow student Michelle Roylance said being woken before dawn by a bugler was a special experience as they remembered those who fought and died.

"So many people suffered and so many lives were lost. We owe it to the Anzac soldiers to remember their sacrifice," she said.