I have been hemming and hawing on my reply to this, and my conclusion is this:

Sunblock is NOT it's own category of "essential" any more than bug dope it. Instead, I would include them in the catagory of "proper spare clothing", along with a wide brimmed hat, long sleeved shirt, long pants, gloves, sunglasses, et al. And, a head net to go over the wide brimmed hat.

UV protection, like insect protection, is important, but it is part of a family of protection.


And on a less technical note, good luck man. Hopefully you've caught it early enough.