Jeanine and I opted for different activities today. She was interested in a little downtime, and I was looking forward to some up time. I signed on to a heli-hike tour of the Franz Josef Glacier, the fourth largest of over 2000 in New Zealand. A helicopter transported us to the glacier where a guide led us on a 2-hour hike through crevasses, tunnels and over the surface of the glacier. The weather started out perfect but gradually clouds began to develop and we had to finish the last quarter of our hike rather quickly so as to avoid spending the night on the glacier. The helicopters use visual navigation and cannot land if the single landing spot becomes obscured by clouds. When this happens, the group spends the night on the glacier in provided tents and sleeping bags until the weather has cleared. Suffice it to say, I was please that our group made it out ahead of the clouds.