What should divers be most aware of regarding currents at a dive site?

Divers should be most aware of the potential hazards posed by currents at a dive site. Understanding that currents can change rapidly and may be stronger than anticipated is crucial for ensuring safety during dives. Strong currents can lead to difficult navigation, increased exhaustion, and the risk of being swept away from a safe return path, making it essential for divers to evaluate current conditions before entering the water.

While currents can sometimes enhance visibility or aid in navigation under certain circumstances, these aspects are secondary to the safety concerns that strong or unpredictable currents present. It's also important to note that currents are not always consistent and can vary due to several factors such as tides, weather, and geographical features. Thus, recognizing the hazards associated with currents should be the primary focus of divers at any dive site.