We camped the night before at a campsite off of Mangatepopo Road and the morning of the hike we drove to Mangatepopo Car Park to commence our hike. The majority of the hike was along the Tongariro Alpine Crossing - relatively moderate hiking - and the last segment was scrambling on the side of the mountain. The last segment was the toughest part of the hike, I'd label as Class 3 climbing because we were on all four limbs 90% of the time.