Every winter, the grey whales of the eastern Pacific gather in the sheltered bays of the Californian peninsula. They make the long trip down from the cold and rich waters off Alaska to give birth to their calves, nurse them and mate. This annual migration is believed to be the longest annual migration of any mammal! What makes this species so interesting to the layman is not just their prehistoric look (let's be honest, they're not exactly the most photogenic whale...), but most of all their amazing curiosity. They regularly approach whale watching boats, and often even establish physical contact. The whales seem in no way bothered by the boats and will sometimes even atempt to play with them. This particular individual stayed with us for more than 15 minutes, slowly spinning underneath the boat, gently bumping it with its mouth and tail, and even showing us its belly a few times!