What do yellow triangles and squares symbolize in the context of boating?

In the context of boating, yellow triangles and squares are used to signify information about the Intracoastal Waterway. This waterway is a system of interconnected rivers, bays, and sounds that provide a navigable route for vessels avoiding the hazards of ocean navigation. The use of specific shapes, such as triangles and squares, serves as important navigational markers for boaters to identify routes, especially in areas where navigation can be complex or challenging.

Recognizing these markers is crucial for safe and efficient travel along the waterway. Each shape conveys distinct information, helping boaters understand where they are and how to proceed safely. Understanding the purpose of these symbols can enhance a boater's ability to navigate the Intracoastal Waterway effectively.