Øyvind Tangen is a sailor.
Blue banded iceberg found close to 1,700 miles south of Cape Town and 660miles north of the Antarctic.
Some of the stripes formed when layers of the iceberg melted and refroze. Others were created from the dust and soil picked up when the ice sheet that gave birth to the iceberg was sliding down an Antarctic hillside. Blue stripes are often created when a crevice in the ice sheet fills up with meltwater and freezes so quickly that no bubbles form.
Oyvind Tangen, photographer
