What should you do when you see a red and green light at night?

When you see a red and green light at night, it indicates that another vessel is approaching, and you must give way to that vessel. The red light represents the port (left) side of the other boat, while the green light represents the starboard (right) side. According to navigation rules, if you see both lights, it means that the other vessel is crossing toward your direction, and to ensure safe navigation, you should take action to avoid a collision by yielding the right of way.

This principle of giving way is crucial for preventing accidents on the water, as it establishes a clear protocol for how vessels should interact in restricted visibility conditions. It is essential for maintaining safe distances and ensuring that both vessels can navigate effectively without endangering themselves or others.