Little Jason Lagoon is an almost circular lagoon, 0.4 nautical miles (0.7 km) in diameter, lying at the head of Jason Harbor to which it is connected by a narrow cut, in Cumberland West Bay

Cumberland West Bay

Cumberland West Bay is a bay forming the western arm of Cumberland Bay, South Georgia. It is entered southward of Larsen Point, where it is wide, and extends in a southwest direction. This feature was surveyed by the Swedish Antarctic Expedition, 1901–04, who named it West Bay. It was remapped...

, South Georgia. The name Little Jason was in use at South Georgia prior to 1920. The feature was surveyed in 1929 by DI

Discovery Investigations

The Discovery Investigations were a series of scientific cruises and shore-based investigations into the biology of whales in the Southern Ocean. They were funded by the British Colonial Office and organised by the Discovery Committee in London, which was formed in 1918...

 personnel, who named it Nogood Lagoon because a motor boat could not get through the entrance. The SGS, 1951–52, reported that the feature is known locally as Little Jason or (in Norwegian) Lille Jason. In order to indicate the nature of the feature, and at the same time to conform with local usage, the name Little Jason Lagoon is approved.