In his first public appearance in the role, Sir Peter will thank the volunteers who have helped rural families and individuals recover from natural disasters.

Laharum BlazeAid camp co-ordinator Barry Thompson said he was excited to attend.

"It's recognition for the volunteers who have come from all across Australia to help others," he said.

"I've got someone in the car beside me who comes from WA. That's what it's all about."

Laharum-based volunteers will leave their campsite at Cameron Oval at 5am to make it to BlazeAid's Wandong camp in time for Sir Peter's arrival at 10.45am.

Horsham Mayor and Brimpaen farmer David Grimble will accompany them.

About 280 BlazeAid volunteers have assisted in the Laharum area since January's bushfire.

"We had about 32 volunteers on Friday," Mr Thompson said.

"On Thursday we had 41 - some people left on Friday."

Generally, the Laharum group has a core of 24 volunteers.

Mr Thompson expects new volunteers this week - secondary school students from the Ballarat area.

He said BlazeAid should be in Laharum until the end of the month.

The community has provided about 1900 evening meals for BlazeAid volunteers.

The kitchen manager, Bettina Gillard, came from Tasmania to help.

BlazeAid volunteer Graham Pyper lives in his motor home, travelling around Australia to assist people recovering from fires and floods.

"A lot of us are solo travellers," he said. "It's about helping people."