Giovanni and Joan run the Earthwatch program – “Dolphins of Greece”. Joan and the Earthwatch volunteers jump into one zodiac, Giovanni, Silvia, Chris and I, into another.

The sperm whale is the world’s largest toothed predator. It also has the largest brain, the largest nose, and lives its life among a strongly bonded family group. These factors alone make sperm whales among the most fascinating creatures on Earth, and a species I am captivated by.