Remember this tip for next summer

Most cars and campers have air conditioning but you can also take advantage of it on a bike. "On a bike" I hear you say! 40°C and higher is common at certain times of year in much of Australia and so you'll get hot. Tarmac reflects this heat and it's like riding in an oven. An evaporative air conditioning system is easily available. Take an old T-shirt, soak it at every opportunity and put it back on (don't use your drinking water). Do your bike jacket up and as you go along the water evaporates making you feel cool! It never stays wet for long so control the amount of cooling via the zipper.