We will be travelling to Peru from mid Dec '11 till mid Jan'12. Instead of going to the colca canyon we want to go to the Cotahuasi Canyon, we would much prefer to be a little more independent if possible. We would like to go to Sipia Waterfall and the thermal springs Is it possible to get a personal guide and if possible we would really like to spend a night at least, camping by the river. Any recommendations much appreciated.