What is the best time to cross a tidal race?

• A. High tide
• B. Slack water
• C. Low tide
• D. Flood current

Answer: (B)

Crossing a tidal race is safest and easiest when the water current is at its weakest. That moment, known as slack water, occurs around the turning point of the tide when the flood and ebb cancel each other and the overall flow drops toward zero. In a tidal race, strong, shifting currents can grab the bow, push you off your intended line, and create rough water or random eddies that make steering and maintaining a straight path difficult. By crossing at slack water, you gain the most control: there’s less sideways push, you can hold your desired course with less effort, and you reduce the chance of being set toward hazards or swept off course. Waiting for stronger flood or ebb currents makes the crossing harder because the moving water adds drift and turbulence that you must fight to stay on track.