The Chalmers Lighthouse was built in 1880 at the harbour entrance, to commemorate Dr Thomas Chalmers, a mathematician and professor of theology.
The octagonal Lighthouse seen today was built to mark the end of the breakwater and stands 9 metres high. Most of the tower is painted white, whilst the service room below the unusually small lantern is painted black. A light is no longer shown from the tower, although it still operates a nautophone fog signal, housed in one of the window holes around the top of the tower, and a decorative white light is still shown from it's lantern.
A new light, seen in the photo, was established in front of the Lighthouse, consisting of a plain unpainted metal pole with two LED units.