[George Marston, illustration of the Antarctic midnight sun from the Nimrod Expedition, 1907-09]

An examination of the horizon disclosed considerable breaks in the vast circle of pack-ice, interspersed with bergs of different sizes. Leads could be traced in various directions, but I looked in vain for an indication of open water. The sun did not set that night, and as it was concealed behind a bank of clouds we had a glow of crimson and gold to the southward, with delicate pale green reflections in the water of the lanes to the southeast.

— Ernest Shackleton, 30 December 1914, South