
Southern emeralds
I have spent many months on research vessels in the waters around Antarctica. For much of that time I was surrounded by ice: blue ice, green ice, brown ice, yellow ice, blindingly white ice, even pink ice. Some of the ice was flat, some formed ramparts, much lurked in the ocean with most of it invisible. Ice can be a visual treat, provided you are on a suitably sized and carefully piloted icebreaker. It provides texture in an ocean environment that might otherwise be featureless, it damps down the ocean swell and it provides unlimited photographic opportunities for those fortunate enough to venture to the far south.