Rockpepper 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...

 3.5 nautical miles (6 km) wide at its entrance, lying east of Boreal Point

Boreal Point

Boreal Point is a headland forming the west side of Rockpepper Bay, along the north coast of Joinville Island. It was surveyed by the Falkland Islands Dependencies Survey in 1953–54. The feature was so named by the UK Antarctic Place-Names Committee because of its position on the north coast of...

 along the north coast of Joinville Island

Joinville Island

Joinville Island is the largest island of the Joinville Island group, about long in an east-west direction and wide, lying off the northeastern tip of the Antarctic Peninsula, from which it is separated by the Antarctic Sound...

. Surveyed by the Falkland Islands Dependencies Survey (FIDS) in 1953-54. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) because of the very many small islands and rocks in the bay.