My Kids Were Swimming at the Beach When a Stranger Suddenly Screamed, “Get Out of the Water!” Then I Learned What a “Square Wave” Really Is…

Listen to lifeguards.

Pay attention to warning flags.

And if someone with knowledge of the area tells you to leave the water, it’s probably not the moment to argue about terminology.

You can always ask questions once you’re safely on shore.

Because the ocean doesn’t need to look terrifying to be powerful.

Sometimes, the most beautiful patterns on the water are also a reminder that nature doesn’t always move in predictable lines.

And that strange “square wave” may be more than just an unusual sight.

It may be a reason to stop, step back, and respect the water.

Have you ever seen waves forming a strange checkerboard or crisscross pattern at the beach?