Mikkelsen Harbour (63°54′S 60°47′W / 63.900°S 60.783°W) is a small bay indenting the south side of Trinity Island between Skottsberg Point and Borge Point, in the Palmer Archipelago, Antarctica. It provides excellent anchorage for ships, and was frequently used by sealing vessels in the first half of the nineteenth century and by Norwegian whaling vessels at the beginning of the twentieth century.[1]