How is the Intracoastal Waterway (ICW) identified?

The Intracoastal Waterway (ICW) is identified by a yellow triangle or yellow square. This marking system is used to signify the boundaries and navigational aspects of the waterway, which provides a safe route along the coast, often used for commercial and recreational vessel travel. The use of yellow shapes, specifically triangles or squares, helps distinguish the ICW from other navigational channels and aids in the identification of the waterway for mariners. Understanding these markings is crucial for safe navigation and compliance with maritime regulations, highlighting the importance of familiarity with navigational aids in maritime operations.