Mrs BA and I are going on the Choquequirao to Machu Picchu Trek in October this year. I'd be grateful for some kit advice. The company the trip have given us a kit list that recommends 4 seasons sleeping bags and Arctic over mittens and so on. Do we really need that sort of thing. I suspect they are covering their arrse on a very worse case scenario but if I don't really need it I don't want to lug it all the way to Peru. Quite apart from anything else unless its bloody cold I would not want to get into a 4 seasons bag as I would be cooking in my own juices. I've tried various websites and Google but I can't get an idea of what the temperature is likely to be in October.