After booking this trip over six months ago I was worried about not being fit enough and unsure if the altitude would effect me, however I have been pleasantly surprised. I found it amazing! Such a memorable few days. It made seeing Machu Picchu so much better having the adventure before hand. The guides were excellent, so knowledgable and enthusiastic! Highly Recommended!!!. Tips ( what help me): РArrive in cusco/ Per̼/ Bolivia / anywhere in altitude as early before as you can to get acclimatised. РGet a porter (but still pack light). РUse walking poles. РDo some stair training before. РStop and enjoy the moment!.