Sachs Harbour or Ikaahuk ("place where one crosses") is the most northerly community in the NWT of Canada. Sachs Harbour is the only permanent settlement on Banks Island, situated on its southwestern shore, and is the nearest community to Aulavik National Park. The settlement is also known as the "Muskox Capital of Canada".
It has a small airfield and terminal, a school, a nurse health center.
Banks Island is tundra territory, with extremely cold winters. The island is home to barren-ground caribou, polar bears, muskoxen - 68000 muskoxen live on the island, the majority of the world's population.
HMS Investigator was strengthened with iron reinforcement for Arctic services; in 1848 she set sail, in search for the missing Sir John Franklin expedition in quest of the Northwest Passage: with two other lost ships, HMS Erebus and HMS Terror, it had made up the ill-fated 1845 British Arctic Expedition that failed the attempt to cross the passage through the Arctic.
The Investigator's remains were found on the shores of the island with the deck of the ship roughly eight metres below the surface of the water. The Canadian archaeologists found the ship "largely intact" sitting upright in approximately 25 feet of pristine arctic water.