Photographer Chase Jarvis was sailing about an hour south of Cape Town, South Africa, when he first saw the fins. They broke the surface of the ocean dozens at a time. The fins belonged to common dolphins, and soon Jarvis noticed hundreds, and then thousands, of them, "...so thick you could have walked across their backs had they been game for it," he wrote on his blog. Instinctively, everyone on explorer Mike Horn's 110-foot boat, Pangaea, grabbed their cameras and started shooting photos and video. Then, Jarvis did something unexpected for someone in his line of work. He stopped taking pictures. Instead, he just took things in.
Here is an excerpt of that moment from his blog: