Iceberg, Charlotte Bay, Antarctic PeninsulaCharlotte Bay on a still, overcast afternoon. The water was dark and glassy, barely a ripple, which made the iceberg's reflection almost perfect. What caught my eye was the band of deep blue at the waterline, that compressed glacial ice revealing its true colour where the sea had been working away at it. The sun was fighting through heavy cloud, just a pale disc hanging in the mist above the mountains. Flat light like this can be difficult, but it