It is separated from Renaud Island to the southwest by Mraka Sound.

The island was shown on an Argentine government chart of 1957.

It was named by the UK-APC in 1959 after Nathaniel Winkle, a member of the Pickwick Club in Charles Dickens' Pickwick Papers.

Winkle Island is located at 65°31′S 65°39′W / 65.517°S 65.650°W / -65.517; -65.650, 600 m southeast of Pickwick Island, 2.2 km west-southwest of Arrowsmith Island, and 500 m north of the small peninsula ending in Tula Point, Renaud Island.

This Biscoe Islands location article is a stub.