Which side of a vessel has a red light at night?

Answer 1

Red marks the Port or left side. (Green is Starboard or the right-hand side.)

Port

Answer 2

From the front and sides. Green is the color (at night) for the starboard side (right), red is for the port side (left).

Answer 3

The port side (left). The right side is known as Starboard and the lamp color for night running is green.

Answer 4

This is a green light.