At the northern end of Lemaire Channel is a pair of tall, rounded and often snow-capped peaks known as Una's Tits. Known as Kodak Gap, this narrow waterway flows between the 3,000-foot peaks of Booth Island and the peninsula. Belgian explorer De Gerlache during his 1898 expedition aboard Belgica first navigated the channel, and, curiously, named it after the Belgian explorer Charles Lemaire, who explored parts of the Congo.