Unknown waters

the long version

The story of the brave officers and men of the nuclear attack submarine USS Queenfish, who made the first survey of an extremely important and remote region of the Arctic Ocean, covering 3100 miles over a period of some 20 days at a laborious average speed of 6.5 knots or less. The unpredictability of deep-draft sea ice, shallow water, and possible Soviet discovery, all played a dramatic part in this fascinating 1970 voyage. Inspired by this polar experience, Captain McLaren later became one of the world's foremost Arctic scientists.--From publisher description.