Suspended more than twenty meters above deck, attached to a wooden mast by two slings and a carabiner, I’m still well below the top of this enormous iceberg as we cruise slowly by. From here I see easily the ice beneath the surface, the vibrant hues helping to define the depths below. More than eighty percent of the iceberg rests underwater leaving approximately thirty meters jutting high into the sky, culminating in a perfectly shaped knife point. For now at least. Each day this iceberg will continue to melt and then eventually roll over, generating ominous sounds and powerful forces as nature redesigns its shape again and again.