Carissa Avison has now been missing for more than five days.

The 21-year-old was last seen on CCTV footage at the Hunting and Fishing store on Holder Place, Rosedale, on the North Shore, about 10am last Thursday.

Neither of Avison's parents commented on their daughter's disappearance when asked by the Herald this morning, and police are remaining tight-lipped about the search.

Police earlier said Avison got a ride from Holder Place to Coast Rd, near Muriwai Beach, and arrived at 11am.

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Yesterday, search and rescue teams shifted their efforts to Woodhill Forest near Muriwai Beach on Auckland's west coast.

Senior Sergeant Paul Newman said officers had spoken with several of Avison's friends, family members, colleagues and people she had recently had contact with to establish a clearer picture of her movements.

He said police did not believe foul play was involved.

"However, we are concerned for Carissa's safety, as her actions are out of character."

Police also made an appeal to Avison.

"If she is aware of the search, we ask Carissa to make contact with police or family and let us know she is well."