Location: The Arctic Islands extend all the way to the North Pole. This is the Canadian Arctic. Terrain: The terrain of the Arctic Islands is barren, and without any tree cover. However some pockets of the northern islands support rich vegetation, birds and various mammals in the short arctic summer. The treeline roughly coincides with the Arctic circle, 67 degrees north. Above this circle there are days in winter when the sun never rises, and days in the summer when it never sets. The islands are all further north than the Arctic circle. The southernmost large island is Victoria Island, which extends down to Resolution Island, on the southern tip of Baffin Island extends down to 63 degrees.