The term 'waterfront sight' can be summarized by two crossword solutions: QUAY and PIER. A QUAY is a structure built along the shore of a body of water, typically made of stone or concrete, that provides a place for ships to dock. A PIER is a raised platform extending from the shore into the water, usually used for recreational activities such as fishing or sightseeing. Both quays and piers are common sights along waterfronts, providing access to the water and often offering stunning views.