The best route to Ghandruk is Nayapul-Ghandruk route. I was suggesting to take a correct route on the way because if someone misses the route, its painful to return to the right one. I have seen such cases. If the geographic condition is tough, then it will be worst. I had a similar kind of experience from high camp to churileter, where most of the hotels were closed, we were out of food and there was heavy snow fall. Worst of all, it was evening and we didnt have flash light. It was summer time and I was wearing a summer jacket.