Sparkes Bay is a bay

Bay

A bay is an area of water mostly surrounded by land. Bays generally have calmer waters than the surrounding sea, due to the surrounding land blocking some waves and often reducing winds. Bays also exist as an inlet in a lake or pond. A large bay may be called a gulf, a sea, a sound, or a bight...

, 1 nautical mile (1.9 km) wide and indenting 2.5 nautical miles (4.6 km) between Mitchell Peninsula

Mitchell Peninsula

Mitchell Peninsula is a rocky peninsula, 2.5 nautical miles long and 2 nautical miles wide, lying between O'Brien Bay and Sparkes Bay at the east side of the Windmill Islands. First mapped from aerial photographs taken by U.S...

 on the north and Robinson Ridge

Robinson Ridge

Robinson Ridge is a rocky coastal peninsula between Sparkes Bay and Penney Bay, at the east side of the Windmill Islands. It was first mapped from air photos taken by the U.S. Navy Operation Highjump on February 1947. It was named by the Advisory Committee on Antarctic Names for Lieutenant...

 and Odbert Island

Odbert Island

Odbert Island is a rocky Antarctic island, long, between Ardery Island and Robinson Ridge in the Windmill Islands. It was first mapped from air photos taken by USN Operation Highjump and Operation Windmill in 1947 and 1948. It was named by the US-ACAN for Lt. Jack A...

 on the south, in the Windmill Islands

Windmill Islands

The Windmill Islands are an Antarctic group of rocky islands and rocks about wide, paralleling the coast of Wilkes Land for immediately north of Vanderford Glacier along the east side of Vincennes Bay...

. First mapped from air photos taken by U.S. Navy Operation Highjump and Operation Windmill

Operation Windmill

Operation Windmill was the United States Navy's Second Antarctica Developments Project, an exploration and training mission to Antarctica in 1947–1948. This operation was a follow up to the First Antarctica Development Project known as Operation Highjump. The expedition was commanded by Commander...

 in 1947 and 1948. Named by the Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) for Lieutenant Robert S. Sparkes, U.S. Navy, military leader at Wilkes Station

Wilkes Station

Wilkes Station was an Antarctic research station established 29 January 1957 by the United States as one of seven U.S. stations established for the International Geophysical Year program in Antarctica...

in 1958.