The rock layers which record the geologic history of Montana De Oro State Park can be read like books in an ancient library. A long exposure emphasized the rock by smoothing the large surf. A shorter exposure would have emphasized the motion of the water and distracted from the incredible rock formations. A dark fog moved in just as the sun set to enhance the mood and allow a longer exposure time. The footing on the slippery stone was treacherous. One unusual effect seen here is in the small pool of still water between the rocks on the left below the horizon and ocean. It shows the reflection of the rock layers as lines going in the opposite direction as the rest of the ‘real’ layers.