View of the Blue Lake -The track descends easily onto the scoria-dotted floor of Central Crater where the track to Oturere Hut leads off to the right. Across the wide crater there is a climb over the north rim and an excellent view back south of a large black lava flow that has spilled out of Red Crater. Over the rim, the track sidles past the wide, round Blue Lake and eases into the V of the Ketetahi Valley