This was the scene the other morning in the Lower Mooloolah River Wetlands Reserve. There's a big tree-planting operation going on, and ponds being dug. They're re-wilding what has been farmland, and previously was wetland.
And it's largely for the benefit of two species of endangered acid frogs. More here, from the Sunshine Coast News: SCN article, August 2022
It's an offset project though, implying there's a developer somewhere nearby who's also benefitting. In fact I've just read the notice more carefully, and the development in question is the Sunshine Coast Airport expansion.