[4] A number of locations on the island have been charted and individually named by various Antarctic expeditions.

[5] To the southwest, 0.75 nmi (1.4 km) off the coast, are the ice-free Spindrift Rocks, approximately 15 m (49 ft) high.

The name is descriptive of the spindrift, or sea spray, which forms over these rocks during westerly gales.

It was descriptively named by UK-APC in 1991 after the Antarctic hair grass Deschampsia antarctica, which grows on the slopes near the point.

It was roughly charted in 1933 by DI personnel and named for the American schooner Express, which visited the South Orkney Islands in 1880.

[11] Foca Point marks the south side of the entrance to Express Cove.

It was named for the whale catcher Foca, belonging to the Compañía Argentina de Pesca.

It was charted in 1933 by DI personnel, roughly surveyed in 1947 by FIDS, and named by UK-APC in 1954 for the Norwegian steamship Thulla.

[25] Twisted Lake, 0.1 nmi (0.2 km) northeast of Cummings Cove, was named by UK-APC for its irregular shoreline.

It was named by FIDS for the colony of Antarctic terns on the southernmost island in the cove.

[31] 0.3 nmi (0.6 km) inland to the south of Berry Head is The Wallows, a low-lying area sheltered by low ridges with a small freshwater pond in the center.

[35] South of Starfish Cove is Borge Bay, a large, irregularly-shaped bay that dominates the east side of Signy Island, delineated by Balin Point to the north and Berntsen Point to the south.

[37] The harbor and its constituent features were first surveyed in 1933 by DI personnel and resurveyed in 1947 by FIDS.

[37][38][39] Observation Bluff, 110 m (360 ft) high, forms the north side of Paal Harbor.

Ice-free Rethval Point, named by UK-APC after the Rethval Whaling Company of Oslo, the first company to start whaling in the South Orkney Islands, forms the south side of the entrance to Paal Harbour.

[42] The south entrance of the cove is marked by Pantomime Point, on Gourlay Peninsula.

[42] Gourlay Peninsula is an irregularly-shaped ice-free peninsula, which is 0.1 nautical miles (0.2 km) wide at its base and widens to 0.4 nautical miles (0.7 km), forming the southeastern extremity of Signy Island.

In 1959 it was named by UK-APC after William Moyes, British government representative at Signy Island in 1912–13.

[51] Lenton Point marks the west side of Fur Seal Cove, which sits next to Gourlay Peninsula.

[53] The island has been identified as an Important Bird Area (IBA) by BirdLife International because it supports substantial and varied seabird breeding colonies.