It runs northward from English Coast and east of Alexander Island across George VI Sound, encompassing the Batterbee Mountains.

It is joined in the north by Fallieres Coast, which runs along Marguerite Bay.

It was named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1985 after John Riddoch Rymill (1905–68), Australian leader of the BGLE, 1934–37.

It was further photographed from the air and surveyed by British Graham Land Expedition (BGLE) in October–November 1936.

Additional aerial photography was done by the Ronne Antarctic Research Expedition (RARE), 1947, and U.S. Navy, 1966.