Which action is inappropriate when boating in a crowded area?

Operating at high speed in a crowded boating area is inappropriate because it increases the risk of collisions and accidents. In such environments, there are often many other vessels, swimmers, and obstacles, which require careful navigation. High speed reduces the operator's ability to react swiftly to unexpected situations, such as other boats suddenly changing direction or emerging from blind spots. Safe boating practices emphasize the need for caution, especially in crowded areas, where slower speeds allow for better control, improved visibility, and the ability to give way to other vessels or obstacles, thus ensuring the safety of everyone on the water.