Chicken Rock Lighthouse, Maritime lighthouse in Rushen, Isle of Man.

Chicken Rock Lighthouse is a 44-metre tapered tower of Dalbeattie granite blocks, cut at Port St Mary, standing on a submerged reef at the southern end of the Isle of Man. It has a lantern room and a single gallery, and its base was cut in winter while the tower rose over four summers.

The Northern Lighthouse Board built this lighthouse in 1875 following a series of shipwrecks caused by poor visibility in the area. A fire in December 1960 ended human operation and led to full automation of the station.

The tower's fog signal reflects changing technology: a bell installed in 1890 was replaced in 1911 by a horn sounding once a minute, which ran until 1995. The light's range was raised to 21 nautical miles after work in September 2006, and the nearby Calf of Man light was switched off on 21 June 2007 to avoid confusion between the two white beams.

The lighthouse stands on a rocky island that is difficult to access from the mainland. Visitors should expect accessibility challenges depending on weather and tidal conditions.

The tower's base was cut from a submerged reef in winter, while the tower itself was raised over four summers. Fog signals followed the light: a bell from 1890, then a horn sounding every minute from 1911 until 1995. A keeper, Norman Quillin, stayed on until 1998, long after automation.