Rock of Gibraltar Rock of Gibraltar The Rock of Gibraltar, also known as The Rock, is a monolithic limestone promontory located in the British overseas territory of Gibraltar, near the southwestern tip of Europe on the Iberian Peninsula. It is high. Most of the Rock's upper area is covered by a nature reserve, which is home to around 300 Barbary macaques. These macaques, as well as a labyrinthine network of tunnels, attract a large number of tourists each year. The Rock of Gibraltar was one of the two Pillars of Hercules and was known to the Romans as "Mons Calpe", the other pillar
Gibraltar the overnight low is and the average sea temperature is . In the warmest month, August, the daily high temperature is , the overnight low is , and the average sea temperature is . Over 500 different species of flowering plants grow on the Rock. Gibraltar is the only place in Europe where the "Gibraltar candytuft" ("Iberis gibraltarica") is found growing in the wild; the plant is otherwise native to North Africa. It is the symbol of the Upper Rock nature reserve. Olive and pine trees are among the most common of those growing around the Rock. Most of the