It was charted by Discovery Investigations (DI) personnel during the period 1926–30, and named by them for Captain James Cook, who explored South Georgia and landed in this general vicinity in 1775.
Cape Crewe forms the north side of the entrance to Cook Bay.
It was named because the rocks serve as a guide to vessels entering Prince Olav Harbor.
Further south, a narrow strait called Carl Passage, 0.2 nautical miles (0.4 km) long, connects Elephant Lagoon, which is about 0.3 nautical miles (0.6 km) long, to Cook Bay.
[7][8] This article incorporates public domain material from websites or documents of the United States Geological Survey.