The Wirra Water Loop trail forms part of the three-kilometre Mambray Creek Walk at Mount Remarkable National Park. Interpretive signs along the trail explain the significance of the area. To the Nukunu people, wirras are the great red river gums of Mambray Creek and wirra water is the quiet groundwater that flows beneath the creek providing water for the sustenance of the wirras. Only after very heavy rain does the creek rise and flow.
Some of the red river gums along the creek have wide hollow bases as well as hollowed trunks. And, you get to actually walk through them on this trail! As you enter, take a close look at the bark-encrusted lump on the trunk which grew due to damage caused by insect activity. This just shows the resilience of the red river gums.
In addition to the red river gums, native pines are also a signature plant of the Southern Flinders Ranges. They grow along the creek among the red river gums in a mixed woodland and provide habitat for small insect-eating birds. In times past, they were harvested and used to build dwellings such as the Baroota Homestead.