Ready to ply the world’s waters with panache, McMullen & Wing’s 164-foot Y/N 1016 expedition motor yacht is sailing through its sea trials. The commissioned cruiser is the largest yacht built to date by the New Zealand boatbuilder and the second in the company’s Diamond series—designed by Gregory C. Marshall Naval Architect—which debuted with the award-winning, 147-foot yacht Big Fish in 2010. With the latter having already logged over 100,000 nautical miles (including voyages to Antarctica), McMullen &…