Medical student Hadi Nazari, 23, was last seen about 2.30pm on Boxing Day after heading down the Hannels Spur Trail at Geehi, between Khancoban and Thredbo.

Family speaking to 9News confirmed Nazari had called them to tell him he was alive and ‘ok’.

“We talked to him… He is ok… He is fine,” family told 9News.

“We are very happy….It is the happiest day of our lives.”

Nazari was found by other hikers about 3.15pm today off the circuit walk near Blue Lake.

He was winched by helicopter to the command post where he is being treated by paramedics.

“This is an incredible outcome, after 13 long days he has been located. We want to thank our emergency services partner agencies, volunteers and members of the public for their assistance,” Riverina Police District Inspector Josh Broadfoot said.

“We never gave up hope of finding him, and we are elated we can return him safely to his family.”

Nazari he had taken camping gear with him for a short camping stint before he was meant to meet his friends at the Geehi Campground, but he never showed up.

He had stopped on the trail to take photos and went missing in the remote national park shortly after.

A search party found a number of items belonging to Nazari on Sunday at a makeshift campsite, including a camera and lighter.

They had also found a hiker pole and rubbish in a separate area on December 31, which are also believed to belong to Nazari.

The search party expanded to involve several agencies including NSW Police Rescue and Bomb Disposal Unit and Riverina Police District officers, the SES, National Parks and Wildlife Service, NSW Ambulance, RFS, VRA Rescue NSW, PolAir and Westpac Lifesaver.

The search for Nazari, which involved more than 300 people, was about to enter its third week when he was found today.

Volunteers and searchers had remained hopeful they would find the missing man alive in the national park.