Chelsea Clinton arrived in Sydney on Thursday as part of the official U-S delegation to the Olympic Games.
It is the first time the First Daughter has been sent on an official visit on behalf of her country.
The plane carrying the U-S delegation to the Olympic Games touched down at Sydney Airport on Thursday.
The team is headed by Donna E. Shalala, U-S Secretary of Health and Human Services.
She has been joined for the six-day visit by Chelsea Clinton - who is representing her parents - and Barry McCaffrey, director of the Office of National Drug Control Policy.
Shalala made a brief statement to journalists as Chelsea stood with McCaffrey and other delegation members.
She explained why Clinton's parents were unable to attend the 2000 Games.
"Both the president and Mrs Clinton wanted to come to Sydney. But they couldn't make it because we're having our own competition back in the United States - called a presidential election. But they did ask us to deliver to the people of Australia their best wishes for a successful games."
SUPER CAPTION: Donna E. Shalala, US Secretary of Health and Human Services
The Health Secretary went on to say that the Olympics provided the highest level of athletic competition, along with the inspiration for all people to become more physically active.
She also expressed hope that the Olympics would "live out the ideal that the Games must be fair and drug free."
No questions were permitted, and the delegation then departed in a motorcade.
"Let us be awed, let us be amazed. But most of all, let's be inspired by what we see at these Games to stay fit - and keep our children fit."
SUPER CAPTION: Donna E.Shalala, US Secretary of Health and Human Services
The U-S delegation is hoping that their presence will help convey the message that physical activity and fitness is not just for world class athletes.
The group's agenda includes a news conference on Saturday on U-S support for anti-drug measures at the Salt Lake City Games in 2002, as well as taking in some Olympic sights, including Friday's opening ceremony, a U-S-China match in women's football and a U-S-Cuba match in women's basketball.
Chelsea Clinton is taking a term off from Stanford University, where she is a senior, to spend the final months of the Clinton presidency with her parents.
The 20-year-old has often been a silent, smiling presence at her father's side during official trips and functions.
Her trip with the U-S delegation to Sydney amounts to her solo debut representing the U-S first family overseas.
The White House remains sensitive about Chelsea's privacy, although certain details of her life have become clear, such as the fact that she is dating a fellow Stanford student, Jeremy Kane.
He has accompanied Chelsea on a few White House trips in recent months, and is now working as a White House intern for the autumn term.