What does a white marker with an orange crossed diamond signify?

A white marker with an orange crossed diamond indicates an exclusion or keep-out area. This type of marker is used to highlight zones where access is restricted to ensure safety and protect specific areas such as swimming zones, construction sites, or ecological reserves. By clearly delineating regions where boats and personal watercraft should not enter, these markers help to prevent accidents and protect both human activities and wildlife.

Understanding the significance of this marker is vital for boating safety, as it ensures that boaters respect areas designated for safety or conservation. Recognizing this could potentially avert dangerous situations or unintended disruptions to sensitive environments.