They care deeply about the routes they walk through the most beautiful parts of Australia.

We can understand why a few of them are annoyed that the central core of the Namadgi National Park may not open until September, 2023.

Three years is a long time to click heels waiting to tick off the last 70 kilometres of the 655-kilometre Australian Alps Walking Track.

One, known online as "Yass Man", thinks the ACT government is being over-protective. A walk in deep bush is not meant to be pre-approved by health and safety inspectors.

He wonders why signs couldn't be put up warning people to proceed at their own risk.

But there are other issues here. The ACT government is monitoring wildlife to make sure feral deer don't dominate the burnt areas as they come back to life.

And any responsible government has to be cautious about the safety of its citizens. Just saying "it's dangerous so mind how you go" isn't acceptable.

The images the parks department publishes of the closed-off core do indicate ongoing danger from burnt eucalypts arching over public tracks. These branches aren't called "widow-makers" for nothing - and not all the friends and users of the Australian Alps Walking Track feel the same as "Yass Man".

"Animals need a chance. They are vulnerable. Just give them a break. Give them time to recover," the convener of an online group, Vern Fitzgerald, said.

Some in the community are suggesting an alternative route, and that seems sensible. Brindabella National Park is not without its charms, even though it isn't in the ACT.

Environment Minister Mick Gentleman is keen to point out that the people doing the essential work in the park are as eager as anyone to see the public return.

"The rangers and staff undertaking recovery efforts love the park and they are working to get people back into all areas as soon as possible," Mr Gentleman said.

It is to be hoped that the work can be done faster than scheduled.

But the Namadgi National Park is for everyone, and that includes the animals which need the space to reclaim their habitats.