Hundreds of hammerhead sharks unexpectedly swarming a diver sounds like the beginning of a pretty alarming tale. Instead, this video of the encounter is really pretty sweet.

A diver from nature documentary company Earth Touch was shooting some undersea footage when he was spotted by three hammerhead sharks, which were quickly joined by about 100 or so of their closest friends. But this shark party wasn't looking for trouble. It had something else on its mind: quality time.

"They were so relaxed with me," the diver says, "which was great. It made me more relaxed, which meant we could spend more time together."

The video comes to us via commenter Guild_Navigator, who recommended it after reading this post on footage of a dolphin stampede as shot by drone cameras.