Sunset over bergy-bits of ice off the shore of Danco Island, Antarctica, Polar Regions

Detail of an intensely blue iceberg adrift in Antarctica.

Adult Gull (Larus spp.) resting on calved ice from the Sawyer Glacier in Tracy Arm, Southeast Alaska, USA.

Mist covers the glacierand icebergs and bergy bits lill the bay in Neumayer Channel, Antarctica.

Calved icebergs and bergy bits falling from the receeding face of the Le Conte Glacier in Le Conte Bay, Southeast Alaska, USA

Icebergs and bergy bits floating in the Weddell Sea in and around the Antarctic Peninsula during the summer months.

Huge intensely blue bench iceberg adrift in Antarctica.

Strange and wonderful formations in the icebergs and bergy bits in and around the Antarctic Peninsula during the summer months.

Adult Gull (Larus spp.) resting on calved ice from the Sawyer Glacier in Tracy Arm, Southeast Alaska, USA.

Icebergs and bergy bits that have calved off the Sawyer tidewater Glacier in Tracy Arm, Southeast Alaska, USA.

Strange and wonderful formations in the icebergs and bergy bits in and around the Antarctic Peninsula during the summer months.

Calved icebergs and bergy bits fallen from the Le Conte Glacier in Le Conte Bay, Southeast Alaska, USA. Le Conte glacier is the southernmost tidewater glacier in the northern hemisphere.

Iceberg/bergy bits calved off Sawyer Glacier in Tracy Arm, Southeasat Alaska, USA. Pacific Ocean.

Icebergs and bergy bits melting (note the icicles) in and around the Antarctic Peninsula during the summer months.

Calved icebergs and bergy bits fallen from the Le Conte Glacier in Le Conte Bay, Southeast Alaska, USA.

Icebergs and bergy bits that have calved off the Sawyer tidewater Glacier in Tracy Arm, Southeast Alaska, USA.

Mist covers the glacierand icebergs and bergy bits lill the bay in Neumayer Channel, Antarctica.

South Sawyer Glacier with icebergs/bergy bits calved off in Tracy Arm, Southeasat Alaska, USA. Pacific Ocean.

Icebergs and bergy bits melting (note the icicles) in and around the Antarctic Peninsula during the summer months.

The Sawyer Glacier, a tidewater glacier at the end of Tracy Arm in Southeast Alaska, USA.

Strange and wonderful formations in the icebergs and bergy bits in and around the Antarctic Peninsula during the summer months.

Icebergs and bergy bits that have calved off the Sawyer tidewater Glacier in Tracy Arm, Southeast Alaska, USA.

Calved icebergs and bergy bits fallen from the Le Conte Glacier in Le Conte Bay, Southeast Alaska, USA. Le Conte glacier is the southernmost tidewater glacier in the northern hemisphere.

Sawyer Glacier with icebergs/bergy bits calved off in Tracy Arm, Southeasat Alaska, USA. Pacific Ocean.