
This is a view of a portion of the cliffs. In this case we can see at the bottom, the clay-based shale rock that was laid down probably some 25 million years ago, like much of the shale in this area. After some time that shale was raised up into that extreme angle we can see in the photo. Then the top was worn off (probably by wave action while that area was submerged). The layer above is a thick layer of the same pebbles we see on the beach. This was probably the beach at that time. And above that is a layer of material that seems a clay-based soil, the upper half of that would be considered the topsoil layer. You can see that the topsoil section is a bit darker in color that the rest of the clay material below it. I'd guess this material was laid down while submerged some millions of years ago. Through the millions of years, the Earth's plates moved and pushed this land up above the sea. Now it sits by the beach, with the waves continually eating away at the cliffs, returning to the sea that which was taken from it millions of years ago. But while it is being eroded, the cliff fills the beach below with this beautiful carpet of small stones, that might someday become trapped yet again in soil held stable for millions of years and raised high above the water for some future creature to look at and wonder about. Or, perhaps more likely, the sea might rise, just as it has risen some 300 feet from it's low some twelve thousand years ago when the earth was warming after the last Ice Age ( when the Mammoths started driving SUVs and increasing their carbon footprint, and Mammoths have big footprints). This rising sea will continue eating into the cliff, causing heartache and monetary loss for the people who own homes on the tops of the cliffs. My guess is that these cliffs lose some ten to twenty feet each century. If you build a home here, you might want it fifty feet or more from the cliff, that way your grandkids can also enjoy the view but still have a patio.

Shell Beach is a pretty nice place.
It is a small community on the Central Coast, some 150 miles north of Los Angeles. In this area, the cliffs run to the sea, and you have many small beaches, some of which are a bit hard to get to as you must walk down narrow trails down gullies to the beaches below. The less accessible the beaches are...the fewer people you see. There are many times you can sit on the beach for some time and not have anyone walk by. Another peculiar feature of this beach in particular is the small brown pebbles that form the bed. They are smooth round pebbles eroded from rocks and worn smooth by the waves motion.

Here's a close-up of the pebbles. They can make walking even harder than in sand, you tend to sink into these loose pebbles as the waves come up.