(CNN)“You are paddleboarding next to approximately 15 great white sharks,” is not something you want to hear when you’re enjoying a day at the beach.

But that’s exactly what beachgoers in California heard broadcast from a helicopter loudspeaker as they paddleboarded in the waters off Capistrano Beach in Orange County on Wednesday.
Lifeguards “are advising that you exit the water in a calm manner. The sharks are as close as the surfline,” Orange County Sheriff Deputy Brian Stockbridge is heard saying on a video shot from a helicopter overlooking the beach.