Arctic Archipelago Disagreement over the passages' status has raised Canadian concerns about environmental enforcement, national security, and general sovereignty. Hans Island, in the Nares Strait east of Ellesmere Island, is a territory currently contested between Canada and Denmark. The archipelago extends some longitudinally and from the mainland to Cape Columbia, the northernmost point on Ellesmere Island. It is bounded on the west by the Beaufort Sea; on the northwest by the Arctic Ocean; on the east by Greenland, Baffin Bay and Davis Strait; and on the south by Hudson Bay and the Canadian mainland. The various islands are separated from each other
Makassar Strait Makassar Strait as being one of the waters of the East Indian Archipelago. The IHO defines its limits as follows: The channel between the East coast of Borneo and the West coast of Celebes <nowiki>[</nowiki>Sulawesi<nowiki>]</nowiki>, is bounded: "On the North." By a line joining Tanjong Mangkalihat, Borneo () and Stroomen Kaap (Cape Rivers), Celebes (). "On the South." By a line from the Southwestern extreme of Celebes (), through the Southern point of Tana Keke, to the Southern extreme of Laoet () thence up the West coast of that island to Tanjong Kiwi and thence across to Tanjong Petang, Borneo