Please note: this site is currently undergoing refurbishment and is not open to the public.
O’Hara’s Battery
Located at the highest point of the Rock of Gibraltar and owing its name to General Charles O’Hara, Governor of Gibraltar between 1795 and 1802.
The first 6-inch cannon was mounted in 1890 but was replaced in 1901 by a 9.2-inch cannon with a range of 29,000 yards (26km), aided to some extent by its height above sea level.