I wouldn't worry too much about it really. You might take a day or two when you get back to get caught up but I don't think you'll lose anything. If it were me, I would take some books and magazines about guitars and guitar playing with me and continue to read up. Knowledge is a good thing.

Will you have access to a computer? If so, just keep logging on to GT and we'll keep you entertained and informed for your two week break. :)