A former signal station at Adderley Head, Port Levy, on Banks Peninsula, where ships were watched from 1867 until the station closed in 1949. The building is closed to the public, according to the website and listing. The Department of Conservation describes the site's history and the building's damage in the 2011 Christchurch earthquakes.
The signalmen kept a watch day and night for approaching ships, answered requests for a pilot and relayed shipping movements to the Time Ball Station at Offices Point above Lyttelton. Messages went by code flags by day and a Morse lamp by night. A telegraph line arrived in 1877 and a telephone system in 1880, which the website says was New Zealand's first submarine telephone service. The schoolhouse built in 1883 is the only building that remains. Reviewers have rated the place 4.4 from seven reviews, and the material gives no reviewer comments to quote.