After the long drive, we arrived at the campground but there was not much ground to stand on.
Later I met a woman who told me that the evening before there was a heavy rain. She hid from it in her camper until the morning and woke up to discover that the belongings she left around the camper were either underwater or gone. Someone's things were floating around. The next two days people had to move through the water.
Heavy rain caused the campground's pond to overflow. Mexico Beach, Florida.