In boating, which of the following is NOT a crossing situation that boaters may encounter?

In the context of boating, understanding crossing situations is crucial for maintaining safety on the water. When boats are overtaking, meeting head-on, or navigating paths that cross, they are all engaged in scenarios where their courses could potentially intersect, creating a need for careful maneuvering to avoid collisions.

Running parallel does not represent a crossing situation because in this scenario, two vessels are moving in the same direction, maintaining a constant distance from one another. There is no immediate risk of collision as there is no intersection of paths, allowing both boats to proceed safely without the necessity of altering their courses. Thus, running parallel is distinctly different from the other situations, which involve navigating potential conflicts in courses.