Canary Islands ocean in the middle of the islands of La Gomera, Tenerife and La Palma; where the laurisilva forests grow. The seven major islands, one minor island, and several small islets were originally volcanic islands, formed by the Canary hotspot. The Canary Islands is the only place in Spain where volcanic eruptions have been recorded during the Modern Era, with some volcanoes still active (El Hierro, 2011). Volcanic islands such as those in the Canary chain often have steep ocean cliffs caused by catastrophic debris avalanches and landslides. The Teide volcano on Tenerife is the highest mountain in Spain, and the
Canary Islands disputes between Castile and Portugal over the control of the Atlantic. This treaty recognized Castilian control of the Canary Islands but also confirmed Portuguese possession of the Azores, Madeira, and the Cape Verde islands, and gave the Portuguese rights to any further islands or lands in the Atlantic that might be discovered. The Castilians continued to dominate the islands, but due to the topography and the resistance of the native Guanches, they did not achieve complete control until 1496, when Tenerife and La Palma were finally subdued by Alonso Fernández de Lugo. After that, the Canaries were incorporated into the