Cape Buller (53°59′S 37°22′W) is a rugged headland forming the west side of the entrance to the Bay of Isles on the north coast of South Georgia. It was discovered and named in 1775 by a British expedition under James Cook.^[1]

Macdonald Cove sits just to the west of Cape Buller on the north coast of the island. The cove is 2.5 nautical miles (5 km) south-southeast of the Welcome Islands and has important fossil occurrences on its periphery. It was named by the UK Antarctic Place-Names Committee in 1982 after David I.M. Macdonald, a British Antarctic Survey geologist in charge of field work on South Georgia, 1975–76 and 1976–77.^[2]

Sitka Bay sits west of Macdonald Dove, 1 nautical mile (2 km) west of Cape Buller. The names Sitka Bay and Buller Bay have both appeared for this feature on maps for many years. Following a survey of South Georgia in 1951 and 1952, the South Georgia Survey reported that this feature is known locally as Sitka Bay, and the name is approved on that basis.^[3]