Castle Hill Lighthouse marks the western edge of Newport where Narragansett Bay opens toward the Atlantic. It is smaller and rougher-edged than the city's grand mansions, but its granite tower and rocky setting make it one of the area's most satisfying coastal views.
Access is limited by nearby private property, so treat it as a viewpoint and photo stop rather than a tower tour. The best experience is the approach along Ocean Drive, where the lighthouse, bay traffic, and open water fit together naturally.