Cooper Island is a small, rugged island off the southeastern coast of South Georgia, lying near the entrance to Drygalski Fjord. Its landscape combines steep rocky slopes, snowfields, glaciers, and sheltered coastal areas, with the island surrounded by cold waters often containing sea ice. The island is part of the protected South Georgia environment and is visited primarily for its wildlife and scenery. Expedition vessels may approach or land when conditions permit, although access depends on weather, sea state, ice, and wildlife activity.

Cooper Island has no permanent settlement and little evidence of modern human development, but it forms part of South Georgia's wider history of exploration, sealing, and scientific work. The island was named in connection with the early exploration of the South Georgia region. Today, its importance is primarily ecological, and visits are managed under the conservation framework established by the Government of South Georgia and the South Sandwich Islands. Strict biosecurity measures help protect the island from introduced species and other human impacts.

The island is particularly associated with its population of macaroni penguins, which breed among the rocky coastal terrain. Gentoo penguins and other seabirds can also be encountered, while seals may rest along the shoreline and whales may pass through the surrounding waters. Cooper Island's position near Drygalski Fjord provides views of steep mountains and glaciated valleys, while the nearby fjord entrance can be surrounded by floating ice. These features make the island especially interesting for observing the connection between South Georgia's wildlife and its rugged environment.

Cooper Island is also notable for its relatively undisturbed character. There are no visitor facilities, roads, or permanent buildings, so expeditions must operate with minimal impact. Visitors are required to maintain appropriate distances from wildlife, avoid blocking animal pathways, and follow biosecurity procedures before going ashore. The absence of developed infrastructure allows the island's penguin colonies, seabirds, and coastal landscape to remain the main focus of a visit. Its combination of wildlife, glaciers, and proximity to Drygalski Fjord makes Cooper Island a distinctive stop on a South Georgia expedition.