Inaki Relanzon / Tourists watching eruption of The Strokkur, the biggest geyser active in the Geysir area, SW Iceland, sequence 9/11. July 2008

Inaki Relanzon / Tourists watching eruption of The Strokkur, the biggest geyser active in the Geysir area, SW Iceland, sequence 7/11. July 2008

Inaki Relanzon / Tourists watching eruption of The Strokkur, the biggest geyser active in the Geysir area, SW Iceland, sequence 11/11. July 2008

Inaki Relanzon / Tourists watching eruption of The Strokkur, the biggest geyser active in the Geysir area, SW Iceland. Sequence 1/2. July 2008

Inaki Relanzon / Tourists watching eruption of The Strokkur, the biggest geyser active in the Geysir area, SW Iceland, sequence 4/11. July 2008

Igor Shpilenok / Hot water flowing from geysers creates a favorable environment a variety of colourful algae in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Walls of the Uzon volcano rising up above the fumeroles and hot springs in its caldera, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Brown bear in Valley of the Geysers, Geyser River, Kronotsky Zapovednik, Kamchatka, Far East Russia, 2006 (one year before the landslide of June 3, 2007, blocked part of the Valley of the Geysers, d...

Igor Shpilenok / Spring snow in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May

Igor Shpilenok / Stain glass wall and Geyser River in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May 2006. Brown bears like to gather in the warm valley in spring to feed on fresh gra...

Igor Shpilenok / Helicoptor flying over the visitor centre and a landslide in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June 2007. The landslide stopped short of the visitor's center on...

Igor Shpilenok / Aerial view of the landslide of June 3, 2007, which blocked part of Kamchatka's Valley of the Geysers, damning the Geyser River and creating a lake. This picture was taken on June 15, six days after t...

Igor Shpilenok / Earth from a landslide in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia On June 3, 2007, a landslide of rocks, snow, ice and trees stopped short of the guest house in th...

Igor Shpilenok / Waterfall tumbling down the rocks in The Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / View from the Visitor center after the landslide of June 3, 2007, in the Valley of the Geysers which stopped just short of the building, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Stain glass wall and Geyser River in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May 2006.

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) feeding on fresh grass by a waterfall, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) relaxes amongst hot steam from the geysers in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) before a steaming geyser in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at the Malachite Grotto, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) amongst hot steam from the geysers in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at waterfall, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at the Malachite Grotto, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) on grassy slope, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) in summer snow flurry, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) adult with cubs in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Rainbow above the Malachite Grotto, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June 2006 (one year before the landslide which caused this cave to be flooded and disappear...

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) beside the Malachite Grotto, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June 2006 (one year before the landslide which ca...

Igor Shpilenok / Aerial view of the Ranger stations before the landslide of June 3, 2007, which changed the face of the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Aerial view of the Ranger stations after the landslide of June 3, 2007, which changed the face of the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia During the landslide of J...

Igor Shpilenok / Geyser River, with its steaming geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia.

Igor Shpilenok / Panoramic of Autumn colours in the Valley of the Geysers, Geyser river, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Autumn on the Geyser River, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia October 2005, (nearly two years before a landslide on June 3, 2007 changed the face of the valley)

Igor Shpilenok / The Geyser River flows through the Valley of the Geysers, cloaked in autumn colours, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / The Geyser River and its geysers, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June 2005 (two years before a landslide changed the face of the valley forever)

Igor Shpilenok / The Geyser River turned lake, Kronotsky Zapovednik, Kamchatka, Far East Russia The Geyser River, which carved the canyon known as the Valley of the Geysers, turned into a lake after the landslide of...

Igor Shpilenok / Ants climbing up plant stem to avoid flood water, after the landslide of June 3, 2007 blocked part of Kamchatka's Valley of the Geysers, damning the Geyser River and creating a lake. Kronotsky Zapoved...

Igor Shpilenok / Autumn colours of the Ermans Birch trees in the Valley of Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Ants climbing up plant stem to avoid flood water, after the landslide of June 3, 2007 blocked part of Kamchatka's Valley of the Geysers, damning the Geyser River and creating a lake. Kronotsky Zapoved...

Igor Shpilenok / Green waterfalls in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Geyser River canyon after the landslide on June 3, 2007, blocked the valley and formed a lake submerging many of the geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Jeff Vanuga / Aerial view of the Grand Prismatic Spring in Midway Geyser Basin, Yellowstone National Park, Wyoming, USA

Shaun Barnett / Pohutu and Prince of Wales Feathers Geysers at Whakarewarewa, New Zealand

Igor Shpilenok / Photographer Igor Shpilenok reporting by satellite phone on events after major landslide in Valley of the Geysers, Kamchatka, Russia, June 3, 2007.

Igor Shpilenok / Photographer Igor Shpilenok taking photos after landslide in the Valley of the Geysers, Kamchatka, Russia, 3 June, 2007

Sergey Gorshkov / Brown Bear (Ursus arctos) near geysers, Kamchatka, Russia

Sergey Gorshkov / Brown Bear (Ursus arctos) near geysers, Kamchatka, Russia

Jeff Vanuga / Bison {Bison bison} grazing with steam from geysers in background, Hayden Valley, Yellowstone National Park, USA

Steven David Miller / Lady Knox Geyser, 20m high, Taupo volcanic zone, Wai-O-Tapu, Rotorua, North Island, New Zealand

George McCarthy / Riverside Geyser, Firehole River, Yellowstone National Park, Wyoming, USA

Doug Allan / Geysers and boiling mud, Sol de Mamama geyser, Altiplano, Bolivia

Pete Oxford / Thermal vents Valley of the Geysers, Cape Kronotsky, Kamchatka Peninsula, Russia

RHONDA KLEVANSKY / Tatio geysers in highlands, near San Pedro, Northern Chile, South America

LYNN M. STONE / Old Faithfull Geyser spouting, Yellowstone NP, Wyoming, USA

LYNN M. STONE / Old Faithfull Geyser spouting, Yellowstone NP, Wyoming, USA

Hermann Brehm / Active Castle Geyser, Yellowstone NP, Wyoming, USA

Doug Wechsler / Active geysers releasing steam in Norris Geyser Basin, Yellowstone NP, Wyoming, USA

Bernard Castelein / Active White Dome geyser, Yellowstone NP, Wyoming, USA

Pete Oxford / Thermal vents in Valley of the Geysers, Kamchatka Peninsula, Eastern Russia

Nigel Marven / Geysers in Geyser valley, Kamchatka, Russia

Igor Shpilenok / Velikan Geyser letting off steam, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) male eating vegetation, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) siblings play-fighting, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Geyserite and Heat-loving Algae surrounding a small hot spring, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Waterfall, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Brown bear {Ursus arctos} large male chases weaker rival off territory, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) eating vegetation in a stand of Stone birch, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Geyser River, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Velikan or 'Giant' Geyser erupting, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Keyflower orchid {Dactylorhiza aristata} in flower, with geothermal steam in background, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia. Note - The orchid flowers earlier in t...

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) walking, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Geysers and fumeroles steaming in the caldera of the Uzon Volcano, next to lake, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Geyser River, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Crater wall around the Uzon caldera with geysers and fumeroles steaming on the crater floor, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia. Bear appeared at photographer's window one morning.

Igor Shpilenok / Fissures and geysers erupting, Uzon Caldera. Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Wild onion {Allium ochotense}flower emerging, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Russia.

Igor Shpilenok / Close-up of Opaline siliceous deposit formed around hot spring, Valley of the Geysers, Kronotsky Zapovednik Reserve.

Igor Shpilenok / Ranger station next to Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia. Note - where photographer Igor Shpilenok lived for several months whilst photographing in the reserve.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) viewed from Igor Shpilenok's cabin, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Lake filled with natural chemicals next to smoking geysers, Caldera of the Uzon Volcano. Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) sleeping on warm ground next to thermal waters, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / The Velikan (Giant) Geyser blowing steam, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Polar willow {Salix polaris} close-up of fruit with water drops, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Russia.

Igor Shpilenok / Zhemchuzhny or 'Pearl' Geyser, Geyser River, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Boiling red clay mud pot, caused by underground volcanic activity, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Orange / Martagon lily {Lilium martagon} Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) asleep in the Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Horizontal Geyser feeding hot water into Geyser River, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) 'Blackpaw' resting in snow with Igor Shpilenok's cabin in background. Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Volcanic Ridge formation with steam from Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) walking along tourist boardwalk, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) play-fighting, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Steaming geyser and river, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Pools of water coloured by the mixing of chemicals, algae, and bacteria. Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.