Their port side (red) is towards you. Their white light, plus the red light, allows you to believe the other boat is off your starboard side (green). Provided they are not getting any closer, and the position of the Red and white light doesn't change (towards you) you can assume there will not be a collision
Maneuver to avoid a collision
maneuver to avoid a collision
Maneuver to avoid a collision
You are approaching the starboard side of another vessel
Another boat is approaching you. The red light is their port side and the green light is their starboard side. The port side is left.
Another boat is approaching you. The red light is their port side and the green light is their starboard side. The port side is left.
Just like on a boat, red to port & green to starboard. You also need a white light at the rear.
Give way
You should take early and substantial action to steer well clear of the other craft.
You're on that boat's right ("starboard") side, and the other boat is not lying at anchor.
Navigation lights, green starboard and red port. Masthead and stern lights should be white
The red light goes on the port side, the left. The green goes on the starboard side, the right. The white goes on the masthead.