At Sjettebreen, the glacier had been active, and the bay was full of ice. But our guides determined that it would be safe for us to come fairly close to the foot of the glacier in the Zodiacs.
As I mentioned, scale is incredibly difficult to judge in this landscape, which tends to abstract itself to the eye. Here's a shot, from one Zodiac, of the Antigua and the other Zodiac, that gives a better sense of perspective.
Here's a Zodiac up close, on deck. They're not big. Or warm.