What should always be ensured before anyone boards a boat?

Before anyone boards a boat, it is crucial to ensure that the engine is turned off. This is essential for several safety reasons. First and foremost, a running engine can pose significant risks, including accidents, injuries, or fatalities caused by the propeller's movement. Even a moment of distraction can lead to serious consequences if the boat is in motion while people are boarding.

Additionally, turning off the engine allows for a safer environment to evaluate the boat's stability and ensure that all safety equipment is readily accessible. It reduces the noise and creates a calmer atmosphere, which is particularly important when coordinating the boarding process, especially with children or inexperienced passengers.

While it is also important to consider factors like whether the boat is anchored and properly lit, these do not directly relate to the immediate safety concerns associated with a potentially running engine. Therefore, ensuring that the engine is off is a vital step in promoting safety before boarding a boat.