You are looking at the right side.
The green light is on the starboard (right) side of a boat,
the red is the port (left).
Red light is port. Green light is starboard.
So a green light tells you that you are viewing the starboard side of the boat.
dark out
dark out
dark out
dark out
dark out
you are approaching head on.
Its a motor boat, coming straight against you.
it tells you the boat is approaching you head on
That what you see is a sailboat. The green light means you must give way.
That what you see is a sailboat. The green light means you must give way.
a boat is approaching you head-on
Boat under steam