What does the term "T" signify in cavern diving?

In the context of cavern diving, the term "T" refers to an intersection of two permanent guidelines. This designation is significant for divers because it indicates a point where different pathways or directions converge, allowing divers to navigate more effectively in complex underwater environments. Properly understanding this symbol is crucial for maintaining orientation and safety while exploring a cavern, as it helps divers make informed decisions about their routes.

Navigating a cavern often involves following guideline markers, and recognizing a "T" intersection helps divers avoid getting lost, ensuring they can safely return to their entry point. The presence of a "T" can also be an important reference for team communication and planning during dives.