We soon became attuned to this life aboard. As Discovery cruised along, you could be midsentence … and at the slightest change in rpm everyone would head for the deck. It could be a fishing boat crossing our course at an ill-advised angle. But mostly it was some spectacular natural show, such as a pod of orcas gamboling in a playful mood or humpback whales feeding together. Jeremy Cole, an old friend of Swanson's, and Zimmermann's father, Volker, were along for the delivery too, and we would all drop whatever we had been doing — reading, eating, watching the scenery — and congregate on the bow to see these amazing creatures. I've never seen wildlife so inclined to interact with people, and the orcas could stick around for more than an hour. On one occasion, a small killer whale charged the boat only to submerge at the last moment, inverting as it passed beneath us, its white belly showing electric blue through the surface.