3-ft

Updated: May 26, 2025

In thus way the 'Endurance' would split a 2-ft. to 3-ft. floe a square mile in extent. Occasionally the floe, although cracked across, would be so held by other floes that it would refuse to open wide, and so gradually would bring the ship to a standstill.

Sir Ernest Henry Shackleton - South: the story of Shackleton's 1914-1917 expedition