Hussain Aga Khan: 7 Photos of Diving Among Humpbacks in Tonga | National Geographic

March 31, 2015 / Trevor Frost for National Geographic.

Each year, in the Austral winter, humpback whales make one of the longest journeys of any mammal on earth: They travel some 5,000 miles from the cold waters of Antarctica—where they feed during the Austral summer—to the warm waters of Tonga, where they give birth and rest.

[…] The photos here were taken in the summer of 2014 by photographer and conservationist Hussain Aga Khan as part of his Focused on Nature project.

via http://voices.nationalgeographic.com/2015/03/31/7-photos-of-diving-among-humpbacks-in-tonga/

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Focused on Nature: Photographs by Hussain Aga Khan