"I have great respect for that place. It's a magical place, you know? It's beautiful."
"We couldn't touch them without hurting them further... The pain relief I carried was just not enough."
"The oxygen gets sucked out of your body, and it was then that I thought, 'she's in big trouble'."
They were among the lucky ones who left the volcano just before it exploded.
Small amounts of volcanic ash have been detected in the steam and gas plume.
The video was taken by Krystal Browitt, one of the Australian tourists who died in the eruption.
The species, which was only discovered recently, have cat-like claws rather than suckers on its arms.
The system is now ready to be operational.
"It's hard to avoid volcanoes in New Zealand."