Keywords: Grotto in an iceberg cr.jpg en Grotto in an iceberg photographed during the British Antarctic Expedition of 1911-1913 5 Jan 1911 1911-01-05 https //flic kr/p/7doxMR National Library of New Zeland Grotto in an iceberg jpg cc-zero Uploaded with UploadWizard Glacier caves Icebergs 1911 in Antarctica Terra Nova Expedition Herbert Ponting |