We, my two young daughters and I are planning to visit Lake Mountain from Melbourne, bringing with us my elderly mother who has never seen snow! She has had two knee replacement surgeries, so we don't want her to get out in the snow. We intend to come in for only a short while, have a picnic lunch and just look around. I will be driving a diesel AWD - do I need to add anything? What about chains for tomorrow - the 5th of August 2014? Any tips, advice, warning would be appreciated! Thanks in advance!