never be treated as an invitation to swim closer. What looks like a beautiful geometric pattern from the beach is actually the visible result of wave systems traveling in different directions and interacting with one another. The phenomenon is more accurately called a cross sea, and it can create complicated and unpredictable water conditions.
If you ever notice waves forming a distinct checkerboard or crisscross pattern, the safest decision is straightforward: stay out of the water or leave it promptly. Move to a safe location away from the surf, listen
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