Yea I saw one last season down in Australia when I was ridding my Kangaroo to the slopes.
Luckily I saw it in time and was able to yell out "CRIKEY!" to alert everyone else in the area to the fact there was a snow snake around.
Thanks for the warning though mate, I know what it's like to have dangerous animals around. Next time you come down to Australia make sure you keep an eye out for drop bears. These little bastards will rip your throat out and you won't even see it coming.