What is a primary hazard associated with overhead diving?

The primary hazard associated with overhead diving is disorientation due to limited visibility. In overhead environments such as wrecks, caves, or other confined spaces, natural light diminishes quickly, leading to a significant reduction in visibility. This can create challenges for divers, making it difficult to navigate and orient themselves. The confinement of these environments means that divers cannot always easily backtrack to a point of reference in case they become disoriented. Practicing good buoyancy control, being aware of potential strong currents, and having a plan for interactions with marine life are all important considerations in diving, but the immediate risk of disorientation due to the lack of light and the complexity of overhead environments makes it the most critical hazard to address in these situations.