Lobos Island, a nature reserve and La Caldera volcano, just north of this resort, Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

View of Parque Nacional de la Caldera de Taburiente from Pico de las Nieves, La Palma, Canary Islands, Spain, Atlantic, Europe

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and beach, Puerto de Tazacorte, UNESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Maido, people looking into the caldera of Mafate, La Reunion, Indian Ocean

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and coast at dusk, Puerto de Tazacorte, UNESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and beach with paraglider, Puerto de Tazacorte, NESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Maido, View into the caldera of Mafate, La Reunion, Indian Ocean

Maido, View into the caldera of Mafate, La Reunion, Indian Ocean

Maido, View into the caldera of Mafate, La Reunion, Indian Ocean

Man walking through a water channel and tunnel, moss, Galeria de agua, Fuentes Marcos y Cordero, natural preserve, Parque Natural de las Nieves, east side of extinct volcanic crater, Caldera de Taburiente, above San Andres, UNESCO Biosphere Reserve, La Palma, Canary Islands, Spain, Europe

Family hiking through a water channel, moss, Galeria de agua, Fuentes Marcos y Cordero, natural preserve, Parque Natural de las Nieves, east side of extinct volcanic crater, Caldera de Taburiente, above San Andres, UNESCO Biosphere Reserve, La Palma, Canary Islands, Spain, Europe

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and beach, Puerto de Tazacorte, UNESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and beach, Puerto de Tazacorte, UNESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Pico Bejenado (1857m), peak of the extinct volcano crater Caldera de Taburiente and coast at dusk, Puerto de Tazacorte, UNESCO Biosphere Reserve, Atlantic ocean, La Palma, Canary Islands, Spain, Europe

Flower meadow in Spring, Caldera Colorada, extinct volcano, La Florida, village near Masdache, UNESCO Biosphere Reserve, Lanzarote, Canary Islands, Spain, Europe

Dimitile, View into Cirque de Cilaos crater, La Reunion, Indian Ocean

Enclos Fouque caldera with the small Formica Leo volcano and the Piton de la Fournaise volcano, La Reunion island, Indian Ocean

Hiker in the caldera of Piton de la Fournaise volcano, La Reunion Island, France, Africa

Hiker in the caldera of Piton de la Fournaise volcano, La Reunion Island, France, Africa

Caldera de Taburiente and El Paso, view from the vantage point "Mirador de Birigoyo", La Palma, Canary Islands, Spain, Europe

Spurge (Euphorbia) in a lava field, La Geria, Caldera Colorada volcano, Lanzarote, Canary Islands, Spain, Europe