The Nimrod sailed initially for New Zealand on August 7th 1907. From New Zealand, the Nimrod was towed by another vessel, the Koonya, in order to save coal that would be consumed once the ship met pack ice. On January 14th 1908, when an iceberg was sighted, the Koonya cast her line off soon afterwards, and the Nimrod sailed on her own. Here, "The Towing Steamer Koonya as Seen from the Nimrod in a heavy sea," from E. H. Shackleton's book, "The Heart of the Antarctic", Volume I, 1909.
(Photo courtesy of NOAA At The Ends of the Earth Collection)