The image shows a close-up view of a water level indicator, commonly known as a water gauge or a depth gauge. The gauge is mounted on a concrete wall and is filled with water. The water level indicator is a vertical pole with markings that indicate different levels of water. There are several red markers on the gauge, possibly indicating specific water levels or thresholds. The background shows a concrete structure, likely a wall or a barrier, which is partially submerged in water. The image captures the water level at a point where the gauge is positioned, providing a visual representation of the water's depth.