Moments like this make slogging it out in the Canberra heat during an ACT Brumbies pre-season training session seem like a walk in the park.

So the Super Rugby flanker says the least he can do is offer just a little bit of support for those battling the bushfires.

Brumbies quartet Cusack, Joe Powell, Harry Lloyd and Berry's Will Miller used a day off from their Super Rugby schedule to visit the Queanbeyan fire control centre this week.

Buildings have been destroyed as the Currowan bushfire rages out of control towards homes on the South Coast while parts of the King Highway were shut down on Friday.

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School teachers in Braidwood have stayed home to defend their properties from bushfires with staff from Queanbeyan public schools being called in to cover classes.

So the chance to learn and say thank you to members of the NSW Rural Fire Service was never going to escape Cusack and his Brumbies teammates.

"It's hitting pretty close to home, heading through Braidwood," Cusack said.

"It's the main point heading down towards the south coast which everyone goes to for Christmas and New Years.

"Everyone is making a special effort to get out into the community and make sure we show our support and help towards those in need.

"It's very special to walk through the command centre out here in Queanbeyan.

"There is a large amount of volunteers which they said is the main contingent of the service out here. There are a lot of people doing great work for the community.

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"It's a pretty tough time out in the Tallaganda National Park, there's a fair few fires heading out Braidwood way.

"We're out here to help show support towards them and show a helping hand where we can.

"It's been a tough pre-season to start, and to have a day off in the midst of it is welcoming. It's a nice opportunity to get out and show support throughout the community."

A visit to the Queanbeyan centre is just one example of the Brumbies working to reconnect with the community.

Players have five hours of community work built into their schedules per week as the club looks to lure disillusioned fans back to the game after crowds dwindled in recent times.

But that is the least of Cusack's worries at a time like this. It also puts the rigours of pre-season training into perspective.

"It has come around pretty quick and the intensity has been there from the get go," Cusack said.

"It's been tough right from day one but that's the nature of the beast with a quick start to the Super Rugby season.

"You have to find peak performance and peak fitness pretty much straight away."