Two days later we met Nurse again. This time she was with two different adult females, Cone and Derecha. I suspect these three were in between calves, perhaps pregnant and taking the summer off from calf rearing.
When we came upon them they were logging at the surface, lying quietly close together blowing now and then. Whales are often seen resting at the surface.
As we approached Cone (the closest whale with the white dorsal)"wheeze blew" as if to say... that's close enough. We kept our distance and drifted along with them for a while.