The grid-pattern “square waves” that appear in viral social media posts each summer are real — they’re called cross seas, and they’re caused by two wave systems meeting at nearly right angles. The ...

If you ever see the rare phenomenon known as square waves, also known as a cross-sea, in the ocean, get out immediately. While most waves form parallel to the shore and break at the coastline, square ...

Heading to the coast for a seaside trip is what vacation dreams are made of. Soaking in the sun while feeling the warm sand between your toes as the shore laps against your feet makes for a magical ...

Add Yahoo as a preferred source to see more of our stories on Google. Square waves formed a grid pattern on Lake Michigan off the coast of Michigan City, Indiana, recently posted footage shows. Drone ...