Final answer:
When operating within 100 feet of other structures, personal watercrafts (PWCs) must travel at a slow speed to ensure safety. The specific speed may vary depending on local regulations or guidelines.
Step-by-step explanation:
When operating within 100 feet of other structures, personal watercrafts (PWCs) must travel at a slow speed to ensure safety. This is typically referred to as a no-wake speed. It means that the PWC should move at a speed slow enough to avoid creating any significant wake or waves that could cause damage to the structures or pose a danger to people or property nearby.
It's important to note that the specific speed may vary depending on local regulations or guidelines. For example, in some areas, the no-wake speed might be defined as traveling at a speed of 5 miles per hour or less. In other areas, it might be defined as operating at a speed that doesn't create a wake or waves that could endanger people or property.
An example of a no-wake speed limit is a speed limit of 5 miles per hour when within 200 feet of the shoreline, docks, structures, or people in the water.