What are the two types of dive flags?

The two types of dive flags that are recognized in diving practices are the red and white diver's flag and the blue and white Alpha flag. The red and white flag, often referred to as the "diver's down flag," indicates that there are divers in the water and serves as a warning to boats and other watercraft to be cautious. This flag can be recognized by its distinctive red color and white diagonal stripe.

The blue and white Alpha flag, meanwhile, is commonly used to signal a vessel that is engaged in diving activities, marking the area for safety. It communicates that divers are below and that other vessels should keep a safe distance.

Understanding these two flags and their purposes is crucial for diving safety and ensuring clear communication among divers and boaters.