Volcán Alcedo The Galápagos Islands

The summit of this volcano (1097m) is famous for its 7km-wide caldera and steaming fumaroles. Hundreds of giant tortoises can be seen here, especially from June to December, and juvenile hawks soar on thermal updrafts. The view is fantastic. Permits are required to hike this long, steep and waterless trail and to camp near the summit (two days required).