Route #4

Davis Strait, Lancaster Sound, Barrow Strait, Peel Sound, Rae Strait, Simpson Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait.  A variant of Route #3 for smaller vessels if ice from McClintock Channel has blocked Victoria Strait.  Simpson Strait is only 6·4 m deep and has shoals and complex currents.