Franco Banfi / Scuba diver exploring volcanic crack Nesgja, in Asbyrgi National Park, northern Iceland

Franco Banfi / Scuba diver exploring volcanic crack Nesgja, in Asbyrgi National Park, northern Iceland

Franco Banfi / Scuba diver exploring volcanic crack Nesgja, in Asbyrgi National Park, northern Iceland

Franco Banfi / Scuba diver diving 'Little Strytan' a chimney rising from 25 meters in hot water, emerging from Strytan - the only geothermal cone found in the world shallow enough for scuba diving, Eyjafjordur nearb...

Franco Banfi / Scuba diver in the Silfra Lagoon, with a shallow sandy bottom, visibility stretching to 120m, Thingvellir National Park, Iceland.

Franco Banfi / Diver leaving the cathedral at Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates, Thingvellir National Park, Iceland.

Franco Banfi / Diver explores the cathedral at Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates, Thingvellir National Park, Iceland.

Franco Banfi / Scuba diver runs through Silfra Hall, a 200 meters up and down swim that leads to Silfra Cathedral, Thingvellir National Park, Iceland.

Franco Banfi / Scuba diver coming up after a dive inside the volcanic crack Nesgja, in the Asbyrgi National Park, northern Iceland

Franco Banfi / Scuba diver inside the volcanic crack Nesgja, in the Asbyrgi National Park, northern Iceland

Franco Banfi / Scuba divers getting ready to jump inside the volcanic crack Nesgja, in the Asbyrgi National Park, northern Iceland

Franco Banfi / Mesmerising dancing volcanic sands and multicoloured sediments leaping from the bottom at Litlaa 'Little River', northern Iceland