Ocean fog is a weather phenomenon that occurs when warm, moist air moves over cooler ocean waters. This temperature difference causes the moisture in the air to condense into tiny water droplets, creating a thick, low-lying cloud. Ocean fog can significantly reduce visibility, making it challenging for ships and boats to navigate. This type of fog is most common in coastal areas, especially during the summer months when warm air from land meets the cooler ocean temperatures. Regions like the California coast and San Francisco Bay are well-known for their frequent ocean fog, which can create a mysterious and beautiful landscape.