It was an incredibly calm day so I stopped the engines and let the boat drift. We stood on the bow and after a while several harbor porpoises came and swam around the boat. In this photo the porpoise is still beneath the surface but it is already starting to exhale, releasing the air from its lungs in a torrent of subsurface bubbles. As the porpoise's head breaks the surface it will be ready to inhale. Photographer: Bill Eichenlaub