Originally Posted by
pdlamb
And if you need to carry more water, get a collapsible bladder or two, fill them, and stick them inside your panniers. That'll keep water more tepid (less hot) than normal bike bottles.
Well if you want to go that route, just get a Camelbak, pack as much ice in it as you can every morning(about 3/4 of a 7 lb bag of ice fits in the Camelbak) and drink nice chilled water for the next 4 to 6 hours. I keep the bottles on the bike for warm sports drinks (2) and extra water for the Camelbak. Usually, I empty the water and am left with a bunch of ice that won't melt quickly enough.
As an added bonus, the cold pack on your back serves as a personal chiller.