MNS:

Interesting that u'll be packing some Emergen-C -- I've been having some hand cramping and was told to increase my electrolyte intake, so I was also told to drink a powdered-mix with water of something called Ultima Replenisher, a zero-sugar supplement that's vegan and gluten-free. It does seem to be helping.

It sounds like you've got your bases covered. I think you're last paragraph -- any change in behavior -- is the key.

Please let us know how the trip goes. Sure it will be fun.