Tidesare the rise and fall of sea levels.
In some places, the ocean is rather predictable. Some shore points offer a wide beach and predictable waves. Those points become hot spots for tourists, swimmers, and surfers.
This winter we traveled to Northern California. We were there with family for about 2 l/2 months. This shore point was different from all we had ever encountered. (See "my bench" on the bluff, where I liked to spend time.)
There were many bluffs and cliffs.