What should you do when you see red and green lights of another vessel at the same time?

When you observe both red and green lights of another vessel simultaneously, it indicates that the vessel is either on a crossing course with you or potentially coming towards you. In this situation, determining if the other vessel is headed toward you is crucial for ensuring safety on the water.

By assessing the relative positions and directions of the vessels, you can make informed decisions to avoid a collision. This evaluation allows you to determine whether you need to change your course, slow down, or take other necessary precautions. Understanding navigation lights and their meanings is fundamental for safe boating practices, particularly at night or in reduced visibility conditions, as they help you gauge the direction and movement of other vessels around you.