So many times in my life I get into the blues, don't want to do something that I should do, and am tempted to just blow it off. However, more often than not, when I just buck it up and go do the thing that I'm thinking about blowing off, I get into the spirit of it and end up having a really positive experience.
My advice, go to the camp. Get in and start working. I would be very surprised if you didn't find the desire returning once you get moving.
You can always leave early if it just isn't working for you.
Just do it!
BTW, is there any good Italian up there?