This piece from anthropologist Bree Blakeman, “A fieldnote from home”:
This evening I nearly saw a man drown. I run the same route most afternoons, over the bridge and along the foreshore. This evening I was about to cross over the bridge when I saw something or someone splashing in the water. I stopped. It was a man, only a few metres from the banks of the river, and he was drowning. He kept trying to stand up before falling over, his head going under the water for a longer period of time each time he fell.
Bree writes some beautiful, beautiful pieces about Aboriginal languages on that blog, too, that are well worth reading.
blue milk 
It is awful, but I have to wonder – would a white guy really have attracted more help? Bystanders not getting involved is a pretty well documented thing, across all demographics. People suck, and people are racist, but I need something more to convince me that this particular example is racist suck, rather than regular flavour.
If it was a white man someone would at least have called 000. If it was a white man emergency services would have turned up.