A man was making a sixteen mile open water swim through the Cook Strait in New Zealand to raise money to protect aquatic mammals like dolphins and whales.

During the swim, he looked down and saw just what he didn't want to see--a great white shark. He hadn't expected to encounter any sharks during his swim. Experts had told him that he would be free from such encounters.

They were wrong. After he saw the shark, he then realized that he was going to be surrounded by another form of swimmer. A pod of almost a dozen dolphins, the very beings that he was swimming for, surrounded him and shielded him from the predator, and swam with him for more than an hour.

He was swimming for the Whale and Dolphin Conservation Society.

He said he will take this swim with him for his entire lifetime.