"Either we can't spell, or they can't read," traditional owner Vince Forrester says of the thousands of tourists who scale Uluru each year, against the wishes of local Aboriginal people.

"There are all these [signs in] different languages asking 'please don't climb'. I feel disappointed that they really haven't got it yet."

The Turnbull government last week announced the privately run Big Uluru Trek would begin in August - a 100-kilometre five-day desert hike from Amata to Uluru that would provide a new tourist drawcard and boost investment. It raised the prospect that the controversial rock climb might finally be banned.

The climb traces the route taken by the ancestral Mala men on their arrival at Uluru, and traditional owners consider that tourists who take the walk are disrespecting this spiritual significance.