Red Crater

The highest point - 1886m - of the Tongariro Crossing. A still active and steaming volcanic vent.

From Wikipedia:

The Tongariro Alpine Crossing in Tongariro National Park is one of New Zealand's most spectacular tramping tracks, and is considered the most popular one-day tramp in New Zealand (there were +500 people on the track on the day!!).

The Tongariro National Park is a World Heritage site which has the distinction of dual status, as it has been acknowledged for both its natural and cultural significance.

The crossing passes over the volcanic terrain of the multi-cratered active volcano Mt Tongariro, passing the eastern base of Mt Ngauruhoe.