Humpback whales show their flukes while feeding near the Antarctic ice edge in the Southern Ocean. Greenpeace is carrying out non-lethal research on whale populations in the Southern Ocean Whale Sanctuary from their ship, the Esperanza.

Greenpeace whale scientist Leandra Goncalves (L) and cameraman Gavin Newman in close proximity to a Humpback whale feeding near the Antarctic ice edge in the Southern Ocean.

The Greenpeace vessel the MY Esperanza, back in the Southern Ocean this year to track Japanese whalers

Iceberg in the Southern Ocean

The Greenpeace vessel the MY Esperanza, back in the Southern Ocean this year to defend the whales against the Japanese whaling fleet, which continues to whale under the guise of 'scientific research'.

The Greenpeace ship Esperanza sails into Sydney Harbour from the Southern Ocean Whale Sanctuary. After 42 days at sea, part of which was spent assisting the fire-disabled whaling factory ship Nisshin Maru and then escorting the entire whaling...

The Greenpeace ship Esperanza sails into Sydney Harbour from the Southern Ocean Whale Sanctuary. After 42 days at sea, part of which was spent assisting the fire-disabled whaling factory ship Nisshin Maru and then escorting the entire whaling...

The Greenpeace ship Esperanza sails into Sydney Harbour from the Southern Ocean Whale Sanctuary. After 42 days at sea, part of which was spent assisting the fire-disabled whaling factory ship Nisshin Maru and then escorting the entire whaling...

The Greenpeace ship Esperanza sails into Sydney Harbour from the Southern Ocean Whale Sanctuary. After 42 days at sea, part of which was spent assisting the fire-disabled whaling factory ship Nisshin Maru and then escorting the entire whaling...