A wharf is a platform built on the shore that extends over the surface of the water. On the wharf, you saw people preparing to set sail.
A wharf provides access for ships and boats, that can pull up and dock alongside it. In fact, wharfs are also called docks or piers. Wharfs are made of wood and act like sidewalks, making it easy to people, cargo and supplies to enter and leave a boat. As a verb, wharf means "to moor," or tie the boat to the wharf and drop an anchor, or "to be given a place at the wharf."