Raine Island Beacon, Heritage-listed beacon on Raine Island, Queensland.

Raine Island Beacon is a cylindrical tower of coral limestone quarried on the island, about 12 metres high with a 9-metre base diameter, tapering in four steps to a crenellated parapet. Its only opening is a semi-circular arched doorway inscribed VR and 1844, above which sit two eroded stone plaques. A wrought-copper lightning conductor runs down the east face, and the interior once held three wooden floors reached by ladders under a timber-rib dome covered with canvas.

Convict laborers built this navigational structure in 1844 using local materials, including coral limestone and shells burned for mortar from the Martha Ridgway shipwreck. The construction served to guide vessels through the treacherous waters surrounding the Great Barrier Reef.

The only opening is a semicircular arched doorway inscribed VR and 1844; two stone plaques above it are now illegible from erosion. Inside, hundreds of inscriptions left by crews cover the walls, evidence of the tower's unofficial use for passing messages after it became obsolete.

The beacon remains visible from 13 nautical miles away and served as a reliable guide for sailors navigating this region. Being located on a remote island means visitors should expect boat travel, and island access depends on weather conditions.

The beacon's interior walls carry hundreds of inscriptions left by crews who used the tower unofficially to pass messages, long after it stopped guiding ships. A wrought copper lightning conductor runs from top to bottom of the east face, and the two inscribed stone plaques above the keystone are now illegible from erosion.