The option that is not part of a defensive boating operation is: “Be careful when you spray other vessels.”

Correct answer

On boating safety quizzes that use this exact wording, the answer key identifies “Be careful when you spray other vessels” as not part of a proper defensive operation. Defensive operation focuses on:

  • Staying alert to other vessels.
  • Keeping a safe distance between you and other vessels.
  • Operating at slow to moderate speeds so you have time to react.

By contrast, “spraying other vessels” refers to playing around or maneuvering close enough to douse another boat with your wake or water stream, which is inherently risky and not consistent with defensive, collision‑avoidance behavior.

Why the other choices are defensive

In typical boating safety guidance, defensive operation means:

  • Maintaining awareness: Constantly watching for other boats, swimmers, and obstacles.
  • Controlling speed: Using slow to moderate speeds appropriate for traffic, visibility, and conditions.
  • Maintaining separation: Leaving plenty of space so you can stop or turn safely if something unexpected happens.

All of those are considered core parts of defensive boating, which is why they are not the correct “NOT” option in this question.