Ten years after Kathryn Grosvenor's body was found in Lake Burley Griffin, police and her family have renewed their appeal for anybody with information to come forward.

On 9 March 2002, a canoeist found Kathryn's body in Yarralumla Bay, 200 metres east of Attunga Point.

Kathryn was 23 years old at the time of her murder and was last seen at her Nicholls home on Sunday, 3 March 2002.

That Sunday night, Kathryn's mother spoke to her on the phone at about 7.50pm.

That was the last time police can positively identify that Kathryn was alive.

Police say there were two unconfirmed sightings of Kathryn in the Gold Creek area the night she went missing.

One was a sighting at the George Harcourt Inn at Nicholls, where she was thought to have bought cigarettes between 9.05pm and 9.15pm.

Her body had been weighed down by a concrete bollard which police discovered had originated from Anthony Rolfe Drive in Gungahlin.

Despite a lengthy police investigation, no one has been charged with Kathryn’s murder.

Detective Senior Constable Sarah Casey from ACT Policing’s Criminal Investigations homicide team and case officer for the murder said that the investigation into Kathryn’s death is ongoing.

“Police have continued to obtain relevant information and interviewed possible witnesses and persons of interest, but unfortunately this has not led to an arrest,” Det. Snr Const. Casey said.

“We know there is someone out there who knows something about what happened and we urge that person or anyone else who may have information to contact Crime Stoppers on 1800 333 000.

“Any piece of information could provide the link we need to solve this crime, and bring closure to the family."

Kathryn was last seen wearing dark-coloured hipster pants and electric blue platform shoes and was thought to be carrying a green vinyl backpack. She was 178cm tall with a slim build and long brown/red hair.

A $250,000 reward is still in place for information leading to the apprehension and subsequent conviction of the person or people responsible for the murder of Kathryn Grosvenor.