Another excursion during our visit to Mount Cook was a very easy walk along a well formed track to Kea Point. You start with superb views of Mt Sefton.
A closer view showing the glaciers and ice cliffs coming off that mountain:
Some even closer views:
As I mentioned, the track is indeed very easy.
Kea Point gives a great view of the bottom end of the Mueller Glacier, with Aoraki in the distance (far right).