Estero at Low Tide, photo by Harold Davis. View this image larger.

My nephew Peter, a strapping 25-year-old from Minnesota, and my friend Mark and I went for a sunset-to-night hike on the Estero Trail on Point Reyes. The trail crosses Drakes Estero, and then heads up a bluff. From the top of the bluff, we could see the sunset reflected in the channels and patterns of the low tide.

In this image, I used a circular polarizer with my camera on a tripod to bring out the colors.