O'Hara's Battery
Gibraltar (UK)
O'Hara's Battery is a historic artillery battery located at the highest point of the Rock of Gibraltar, near the southern end of the Upper Rock Nature Reserve. Constructed in 1890 on the site of the former O'Hara's Tower, which was nicknamed "O'Hara's Folly" due to its failure as a watchtower, the battery was named after Governor Charles O'Hara. Initially equipped with a 6-inch breech loading gun, it was upgraded in 1901 to a powerful 9.2 inch Mark X breech loading gun capable of reaching targets up to 16 miles away, theoretically able to cover the African shore across the Strait. The battery was actively used during World War II and was last fired in training exercises in 1976. Architecturally, it features a narrow stairway leading to an underground magazine, a concrete enclosure housing the gun turntable, and steel doors providing access to the gun platform. Today, O'Hara's Battery is refurbished and open to the public, offering visitors not only military history but also spectacular views. It is listed with the Gibraltar Heritage Trust and remains a notable landmark within the Upper Rock Nature Reserve.
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Tip: For the best experience, visit O'Hara's Battery during clear weather to enjoy unparalleled panoramic views of the Strait of Gibraltar and beyond. It is advisable to check opening hours in advance and consider purchasing tickets beforehand if available. Visitors should wear comfortable footwear due to some steep paths and stairways. Discounts may be available for seniors, children, and groups. The site is accessible via O'Hara's Road and is near other military sites like Lord Airey's Battery, which can be combined into a single visit.
Interesting facts
- •The 9.2 inch Mark X gun installed at O'Hara's Battery in 1901 had a range of approximately 29,000 yards (16 miles), theoretically able to reach the African shore 14 miles away.
- •O'Hara's Tower, the predecessor to the battery, was nicknamed 'O'Hara's Folly' due to its failure as a lookout point.
- •Governor Charles O'Hara, after whom the battery is named, was known as the 'Old Cock of the Rock' and was a popular yet flamboyant figure in Gibraltar's history.
- •O'Hara's Battery is one of four television broadcasting sites in Gibraltar, though plans have been made to consolidate transmitters to reduce environmental impact.
History
O'Hara's Battery was built in 1890 on the former site of O'Hara's Tower, a watchtower constructed under Governor Charles O'Hara but deemed ineffective and demolished in 1888.
The battery replaced the tower with a modern artillery emplacement featuring initially a 6-inch gun, later replaced by a 9.2 inch Mark X gun in 1901 to defend the strategic Strait of Gibraltar.
It served actively through World War II and was last used in 1976 for training.
The battery has since been preserved and is recognized as a heritage site in Gibraltar.
Place Guide
9.2 Inch Mark X Gun1901
This large-caliber gun was installed in 1901 and served as the main artillery piece of the battery. It could rotate on its turntable to cover a wide firing arc and was protected by a steel shield added in 1934.
Underground Magazine and Stairway1890
A narrow stairway leads visitors down to the underground magazine where ammunition was stored safely. This area connects to the gun emplacement via tunnels housing pumps, hoists, and shells.
Concrete Enclosure and Gun Turntable1890
The concrete enclosure surrounds the gun turntable, which supports and allows rotation of the 9.2 inch gun. Large black steel doors provide access to this area, an engineering feature vital to the battery's operation.
Pathway to Lord Airey's Battery
A walking path leads down from O'Hara's Battery to nearby Lord Airey's Battery, allowing visitors to explore multiple historic military sites in one visit.
