Our Helicopter trip on to Franz Josef glacier was cancelled due to fog in the valley (not unusual this year!) so we quickly reorganised for a walking trip on to the Fox Glacier. Sarah, our guide, was very knowledgeable and did her best to keep us all entertained and informed as we walked up the valley (1hr) and spent 1+ hr on the glacier before a 1/2 hr walk back. You do get to walk on a glacier but it is at the bottom, 'dirty' end. You also go at the pace of the slowest person who may be walking with an iPad in front of them for 3 hours so not so fast. But beggars can't be choosers and we appreciated this as an alternative to the Helicopter Hike.