A network of national parks in the Canary Islands attempts to conserve their most characteristic ecosystems. Hence, the Mt. Teide National Park, in the centre of the island of Tenerife, shelters the best examples of the supra-Mediterranean vegetation level. On the other hand, with an average altitude of over 2,000 metres, the Mt. Teide National Park offers one of the most spectacular examples of vulcanism in the world and represents the best example of alpine volcanic ecosystem in the Canary Islands
From a geo-morphological point of view, the structure of the caldera and the Teide-Pico Viejo strato-volcano are among the most spectacular geological monuments in the world, apart from the wide variety of volcanic cones and domes, lava flows, tors and caves that form a range of colours and forms that increase the scientific and scenic interest of the area. With regard to the enormous biological wealth of the area, the outstanding flora includes a large percentage of endemic species and the invertebrate fauna a large number of exclusive species. This National Park, created in 1954 in recognition of its volcanic and biological singularity, is the largest and the oldest of the National Parks of the Canary Islands, covering an area of 18,990 hectares, and the fifth largest of the thirteen National Parks in the network. Apart from its Peripheral Protection Zone, this natural area is surrounded by the Corona Forestal Nature Park, the largest protected natural area of the Canary Islands with 46,612.9 hectares. In 1989, it was awarded a class A European Diploma by the Council of Europe. This European Diploma was extended in 1994 and in 1999. The Teide National Park Board and the Joint Canary Island National Parks Commission held several meeting in 2002 to have the Mt. Teide National Park declared a World Heritage Site. As a result of this initiative the Teide National Park was declared as World Heritage Site in summer 2007.