What is the light characteristic of Black River Buoy 2?

The light characteristic of Black River Buoy 2 is identified as Fl G 4s, meaning it is a flashing green light with a specific pattern of flashes. The "Fl" indicates that the light is flashing, "G" designates its color as green, and "4s" signifies that the light will flash once every four seconds. This characteristic allows mariners to easily identify the buoy and position themselves appropriately while navigating, especially in coastal or riverine environments.

Understanding the specific characteristics of navigational aids like buoys is vital for safe passage and accurate navigation. Other options, though plausible for different buoys or markers, do not describe the lighting pattern for Black River Buoy 2. The flashing green light serves as an important identifier in the waterway, ensuring boats and vessels can recognize their positioning relative to this particular buoy.