Throughout the day you are likely to walk over rocks, riverbeds, through fields and rice terraces. Sometimes you'll need to cross wooden suspension bridges, walk through dense forests and traverse through deep snow. You'll probably be going up and up for a few hours, then down and down for another few hours. You'll be sweaty, might fall down and your feet and kness will be sore. Despite all this you'll have one of the most memorable experiences of your life and feel a huge sense of accomlishment at the end of each day.