What hazard does the symbol Rock bare or awash indicate on navigational charts?

• A. Dangerous to navigation
• B. No hazard present
• C. Stable seabed
• D. Deep-water channel

Answer: (A)

Rock bare or awash on navigational charts marks a rock that is exposed or at the water surface, meaning it can be a hit risk for vessels. This makes it a danger to navigation because hulls and propellers can be damaged if a vessel encounters it, especially at lower tides or in limited visibility. Mariners must treat this symbol as a warning and plan to avoid the area or pass with ample clearance. The other options don’t fit: there is a hazard present, so “no hazard” is incorrect; a stable seabed describes bottom conditions rather than a surface obstacle; a deep-water channel indicates a safe, deeper route, not a surface rock hazard.