pier
-noun
1.a structure built on posts extending from land out over water, used as a landing place for ships, an entertainment area, a strolling place, etc.; jetty.

There are large piers and small piers. They are found on the shores of oceans, rivers and lakes. They are used as landmarks when on the beach or water. Piers are a good spot to fish, feed the gulls or sun. When it's really sunny and hot, if you go underneath the big ones, you will find cool shade.