What is the purpose of a dye marker?

• A. Bright patch visible from air
• B. Signals only on water surface
• C. Color change device for night
• D. Used to mark boundaries

Answer: (A)

A dye marker is used to create a bright patch on the water that can be seen from the air, so rescuers or observers overhead can quickly locate you. The dye disperses on the surface to form a high-contrast mark that stands out against the water, even in waves or glare, making your position easier to spot from a plane or helicopter. It’s not intended as a night-signaling device, and it isn’t primarily for marking boundaries. It serves the rescue purpose by turning your location into a conspicuous cue for search-and-rescue teams.