Cape Buller (53°59′S 37°22′W / 53.983°S 37.367°W / -53.983; -37.367) is a rugged headland forming the west side of the entrance to the Bay of Isles on the north coast of South Georgia.
[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.
Macdonald, a British Antarctic Survey geologist in charge of field work on South Georgia, 1975–76 and 1976–77.
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.