NAUI Scuba Diver Practice exam

Using surface markers is crucial for ensuring safety and visibility during scuba diving, especially in busy areas. When divers are surfacing in locations with potential boat traffic or where there may be other surface activities, deploying a surface marker buoy (SMB) helps signal their presence to others. This practice significantly reduces the risk of accidents, as it alerts boaters and nearby divers that someone is ascending to the surface, thereby providing an additional layer of safety.

In other situations, such as solely being at the surface, below the surface, or during safety stops, divers might not need to use surface markers as consistently. While it's important to be aware of safety regardless of the environment, the primary goal of surface markers is to enhance visibility during ascent, particularly in areas with higher risks. This strategic use not only protects divers but also promotes a safer diving environment overall.