> Steve, I get tired just thinking about hauling a water-laden pack to the summit from Guitar Lake.
Well, if you have been out for a few days, your pack is a lot lighter than when you started. So you load up with water -- I think we actually packed empty 2-liter soda bottles with the summit overnight in mind.
And we lightened the load more by having dinner about 2 PM, eating all we could there, and then just snacking at the top -- it's easier to both eat and sleep at lower altitude.
Then, by heading up later, you don't need THAT much water at the top. And you drink lots on the way up. All you need once you're at the top is about a liter -- just enough to sip before bed, then some in the morning.
I think we started up with 4 liters each. I gave away a pint to some guy who walked up in the evening with only a single bottle to take him all the way up and back.