This is the most visited spot on the entire North Shore. The shiner itself is a state historic site with a separate admission fee. Guided tours are available (they depart hourly), or you can explore on your own. If you don’t mind stairs, say 170 or so each way, tramp down the cliff to the beach for incredible views of the lighthouse and surrounding shore.
The lighthouse was built after a whopping storm in November 1905 battered 29 ships in the area. Modern navigation equipment rendered it obsolete by 1969. No matter. It remains one of the most picture-perfect structures you'll come across.