The Castle Breakwater Lighthouse, located in Saint Peter Port, Guernsey, is a notable maritime landmark. While specific accessibility details are limited, breakwater lighthouses often present challenges for those with mobility issues due to their location and structure. Visiting the lighthouse may be best suited as part of a broader harbor tour, either solo or guided, depending on personal preference and available tours. Seasonal restrictions might apply depending on weather conditions, particularly during the winter months. The cost to view the lighthouse is generally free as it is an external structure, although harbor tours may incur a fee. A typical visit to view the lighthouse as part of a harbor excursion might last between 1 to 2 hours.