Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Morley Read / Aerial shot tracking over a 1800m high tepui, Nangartiza Valley, Zamora Chinchipe Province, Ecuador, 2018. (non-ex)

Morley Read / Aerial tracking shot of a waterfall flowing over an old andesitic lava flow, Rio Pita Valley north of Cotopaxi Volcano, Ecuadorian Andes, 2018. (non-ex)

Guy Edwardes / Milky Way above Durdle Door rock arch. Jurasic Coast, Dorset, England, UK. August 2019. Composite image.

Guy Edwardes / Aurora borealis above sea stacks, Reykjanes Peninsula, Iceland. 2019.

Theo Bosboom / Sea stacks consisting of flysch rock battered by the incoming tide, playa de Gueirua, Asturias, Northwest Spain. October 2015

Jack Dykinga / Inspiration point covered in snow, Bryce Canyon National Park, USA, January.

Jack Dykinga / Landscape of hoodoos in snow at sunrise, Bryce Canyon National Park, Utah, USA, January.

Jeff Foott / Winding road and sandstone formations, La Sal Mountains, Arches National Park, Utah

Jeff Foott / Sandstone rock formations, La Sal Mountains, Arches National Park, Utah

Jack Dykinga / Navajo Sandstone formations with striated lines of mineral deposits. Grand Staircase-Escalante National Monument, Utah

Jack Dykinga / Morning light with autumn coloured Cottonwoods (Populus sp) trees lining the river. Valley of the Gods, Colorado Plateau, of the Great Basin Desert, Utah, USA, November 2018.