Sandefjord Bay (Coronation Island)

Sandefjord Bay (60°37′S 46°03′W / 60.617°S 46.050°W / -60.617; -46.050) is a narrow body of water on the west coast of Coronation Island in the South Orkney Islands of Antarctica. It is 2 mi (3.2 km) long and extends in a northeast–southwest direction between Coronation Island and Monroe Island.

Spine Island lies in the entrance of the bay. Just southwest of Spine Island is Mainsail Rock, which is the largest and easternmost of a chain of three rocks trending in a northwest–southeast direction off the southeast side of Monroe Island.