Mount Teide is a volcano located on the island of Tenerife, which is part of the Canary Islands in Spain. It stands at 3,718 meters (12,198 feet) above sea level, making it the highest peak in Spain and the third highest volcano in the world when measured from its base on the ocean floor. The volcano is surrounded by Teide National Park, a UNESCO World Heritage site known for its unique landscapes and diverse ecosystems. Mount Teide is an active volcano, with its last eruption occurring in 1909. It is a popular destination for tourists, offering stunning views and opportunities for hiking and stargazing.