Hi Deano59..... I`ve never been to Australia, nor am I being flippant with you but while I know the continent has 4 different climates, in July it`s winter -time in the southern hemisphere, so it shouldn`t be unduly hot at the very least,so hopefully your bonds won`t become loose too soon.... I wonder if it would be possible to take one of those little ice-pack things that you leave in the freezer and then pop into cooler-bags for keeping food cool on picnics etc.... if you are staying in Hotels or other such places, you might be able to ask them to keep an ice-pack in their freezer for you overnight or while you are out and about by day.... in the evening you could then gently peel the system back and apply the pack to the bit you want to `treat`? Just a suggestion ..may not be practical.? Maybe you could try it at home and see if it works ? Paul.