GARY GALLAGHER For 20 years, the K. Aage Nielsen–designed ELSKOV cruised to rugged and remote northern regions. Here, the 46′ sloop is anchored in Raudefjord, Spitsbergen, in 2003. Spitsbergen, which is part of Norway, lies at one of the highest-latitude destinations that can be reached by a cruising yacht. “There’s something about north…something that sets it apart from