Prince Gustav Adolf Sea

Prince Gustav Adolf Sea is an arm of the Arctic Ocean, which is located in Qikiqtaaluk Region, Nunavut. It is surrounded by the islands of the Canadian Arctic Archipelago. The sea is surrounded on the west by Borden Island and Mackenzie King Island and on the east by Ellef Ringnes Island. Lougheed Island lies at the south of the sea.

The sea opens into the Arctic Ocean at the north, and into the Byam Martin Channel and Maclean Strait at the south.