Which strategy is effective for navigating a wreck?

Using external landmarks for orientation is a highly effective strategy for navigating a wreck. Landmarks, such as recognizable geological features or remains of the wreck, can provide visual references that help divers understand their position and maintain their sense of direction. This method is particularly useful in the often complex environment of a wreck site, where visibility might be limited and the layout can be intricate.

By keeping external references in sight, divers can align their navigation with known points and improve their ability to traverse through the wreck safely. It enhances situational awareness and helps divers avoid getting lost or disoriented, which is crucial in underwater navigation.

While other methods, such as using compasses, following current, or sonar technology, can also be useful in various diving scenarios, relying on external landmarks is more straightforward and effective in the confined, structured space of a wreck.