Tidal races refer to the phenomenon in which the water in narrow channels or between headlands is agitated by the incoming and outgoing tides. Such occurrences are often accompanied by rough waters, whirlpools, and strong currents, which can pose a danger to sailors and surfers. There are many synonyms for the term tidal race, including tidal surge, rip current, tidal bore, and tidal stream. These synonyms are commonly used in nautical charts and maritime navigation to indicate the areas where tidal races are likely to occur. Proper awareness and knowledge of such terminologies can help mariners avoid risky navigational situations and ensure their safety on the water.