An autistic boy missing for two nights in a Victorian national park may not even know he is lost.
Luke Shambrook, 11, was last seen leaving Candlebark Campground in Fraser National Park near Lake Eildon at 9.30am on Good Friday.
Campers are helping rescue teams including the air wing, dog squad, local police and SES volunteers in the search of thick bushland.
Having met Luke's family during a push to open a special school in Melbourne's southeast, Opposition emergency services spokeman Brad Battin says it's devastating to hear the 11-year-old is missing.
He says Luke's parents Tim and Rachel have been updating him on the search and appreciate the efforts of all those out looking for their little boy.
"He's a lovely young kid," Mr Battin told AAP on Sunday.
"He displays all the characteristics of a child with autism, which means he might not even think he is lost."
Sergeant Greg Paul says the search is focused on an area of several kilometres of bushland.
"We've got a lot of searchers in the bush, we've got a lot searchers searching all the tracks and in between the tracks and the gullies and the spurs," he told reporters on Saturday.
The Shambrook family has thanked emergency service workers, volunteers, family and friends for their help.
