Queen Maud Bay is a V-shaped bay 2.5 miles (4.0 km) wide at the entrance, lying immediately north of Nunez Peninsula along the south coast of South Georgia. Roughly charted in 1819 by a Russian expedition under Bellingshausen, it was named prior to 1922 for Queen Maud, wife of King Haakon VII of Norway, probably by Norwegian whalers who frequented this coast. Hammerstad Reef (54°13′S 37°25′W / 54.217°S 37.417°W) is a reef 1.5 nautical miles (3 km) lying in the northern part of the entrance to the bay. Semla Reef lies on the north side.