Geographic location
Arctic
6
Chevreux
6
Coleman
6
Greenland
6
Gronland
6
Indian
Lowry
6
Pacific
6
Thurston
6
Antarctic
4
Austin
4
Baja
4
Catalina
4
Hurley
4
McGrath
4
Myers
4
New Zealand
4
Nonsuch
4
Phoenix Islands
4
Rompiente
4
Southern Ocean
4
Strauss
4
Tristan
4
Admiralty Bay
2
Arctic Ocean
2
Austral
2
Baffin Bay
2
Bering Sea
2
Bougainville
2
Bouvet
2
Bouvet Island
2
Bransfield Strait
2
Campbell Island
2
Canada
2
Cape Crozier
2
Christiania
2
Coats Land
2
Croker
2
Croker Passage
2
Crozier
2
Drake Passage
2
Eagle Island
2
Elephant Island
2
Emison
2
Galapagos
2
Geiger
2
George Murray
2
Gomez
2
Gonzalez
2
Griffith
2
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