Teide National Park

Teide National Park is the most visited National Park in Spain and also one of the most visited National Parks in the world. 
Located in Tenerife (Canary Islands), it is centered around 3718m Mount Teide, the highest mountain of Spain and the islands of the Atlantic (it is the third largest volcano in the world from its base). It was declared a National Park on 22 January 1954, making it one of the oldest national parks in Spain. 
The park has an area of 18,990 hectares and was named a World Heritage Site by UNESCO on 28 June 2007. Since the end of 2007, it has also been one of the 12 Treasures of Spain. Midway up the mountain are the telescopes of the Observatorio del Teide. Territorially, it belongs to the municipality of La Orotava.