The first really big breaking wave is quite beautiful, awesome. I see
what I think to be a white cloud coming into view at the windscreen.
It's the breaking crest of the wave, and just underneath it is enough
translucence in the water to see a spectacular deep blue, the kind of
intense and vivid colour you see in a glacier. Terrifying power and
breath-taking beauty all in one.

Clive Tully, Confronting Poseidion (2002)