New Zealand
The crossing is a day-trip across the extinct volcano of Mt. Tongariro. It requires some effort, but the rewards are worth it once you reach the moon-landscape and startling colours of the upper crater. To the south lies the still active cone Ngauruhoe, and to the north lake Taupo, which is a caldera resulting from one of the largest ever supervolcanic eruptions. The descent through tussock and native bush rounds off the trip nicely.
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