What trails on North rim? I went to school for guiding at northern Arizona University and know the canyon well. Last guide test was 28 days in the canyon. Last summer I took my wife and her mom down Bill Hall, thunder river and up deer creek what a trip they had! Not living in AZ anymore so anytime I plan a trip it's north rim or obscure south rim trails. On our trip last spring we saw 6 people in 6 days other than down at the river.