UPDATE 3.50PM, TUESDAY: Volunteers from across the state have arrived in Northern Tasmania to search for a man missing in the bush.

Scottsdale's Peter Willoughby, 76, has been missing for more than 48 hours in bushland near Hollybank.

He drove with acquaintances to Excalibur Road on Sunday to retrieve the stranded car he and his wife were rescued from on Wednesday night and Thursday morning.

In trying to find the vehicle, which had been stuck on a bush track, he walked off and became separated from the group.

He hasn't been seen since.

By early afternoon Tuesday, searchers had combed 110 hectares of bushland and were beginning to search new areas.

"This is still a search mission, we are still looking to try and locate Mr Willoughby and return him to his family and friends," Tasmania

See Full Page