Sieht schön aus, aber leider nicht ganz gesund: http://de.wikipedia.org/wiki/Yarra_River#Umweltschutz_und_Verschmutzung...
Gleichwohl, manch einer hat sich nicht abhalten lassen:
Jim Courier jumps into the river.
On the morning of the 1992 Australian Open final, the local paper ran a
front-page story about the dangerously high levels of contamination in
the river which runs past Melbourne Park. Either Courier had not read
that story, or he had, and he did not care. After beating Stefan Edberg
in the final, the American dived into the Yarra. The local health
department had calculated that the pollution levels in the Yarra were 18
times the acceptable limit, and Courier reported that the river was
“really dirty”. “My coach said to me after the quarter-finals, ‘If you
win this, I’m going to dive in the river’, and I said that I would
follow right behind,” Courier disclosed. However unpleasant Courier’s
victory swim might have been after he won the Norman Brookes Challenge
Cup for the first time, the following year he defeated Edberg in the
final once more to retain his title, and again he went in the river
fully-clothed.