While diving close to the Aeolus wreck off the coast of North Carolina, Shelley Collett was suddenly struck by the feeling that she was being watched. Sure enough, there was a sand tiger shark creeping up behind her.

Shelley told Storyful that she was not in any danger during the encounter captured on video, but the shark did startle her as he was “quite stealthy.” Credit: Scuba Diver Life via Storyful