Tenerife (/tɛnəˈriːf/ ; [teneˈɾife]) is the largest and most populous island of the seven Canary Islands; it is also the most populated island of Spain, with a land area of 2,034.38 square kilometres (785 sq mi) and 898,680 inhabitants, 43 percent of the total population of the Canary Islands.n addition, the highest point, Mount Teide, with an elevation of 3,718 m (12,198 ft) above sea level is the highest point in all of Spain, is also the third largest volcano in the world from its base in the bottom of the sea. For this reason, Tenerife is the tenth highest island worldwide.