The tower was part of a strategic signaling chain extending from Loop Head to Galway Bay.
The name 'Hag's Head' originates from a rock formation nearby that supposedly resembles a woman's profile.
The original promontory fort, Moher O'Rúa, was demolished in 1808 to provide stone for the construction of the signal tower.
The structure is built on private farmland, which requires visitors to pass through marked stiles to access the cliff path.
The site represents the southernmost boundary of the Cliffs of Moher UNESCO Global Geopark visitor experience.
Moher Tower is a derelict Napoleonic-era signal tower located at the southernmost point of the Cliffs of Moher, known as Hag's Head. Built around 1808, the structure served as part of a chain of signal stations designed to provide early warnings of a potential French invasion. The building stands on the ruins of an earlier Iron Age promontory fort, known as Moher O'Rúa, which gave its name to the modern cliffs. The tower remains a private, non-restored structure in a state of advanced ruin, inaccessible to the public for entry. It sits on a narrow limestone headland that offers an unobstructed view of the coastline stretching toward the Aran Islands.
The coastal path approaching the tower from the north provides the best perspective of the building against the backdrop of the Atlantic.
Wear sturdy, waterproof hiking boots as the coastal path is often muddy, uneven, and slippery.
Keep a safe distance from the cliff edges, as the limestone is prone to erosion and lacks safety barriers at this section.
Check local weather reports specifically for wind speed, as conditions on the headland can be significantly more intense than inland.
Attempting to enter the tower structure, which is structurally unstable and cordoned off for safety.
Respect all private property signage and remain on designated trails to avoid disturbing local livestock.