Alex Mustard / Diver swims between impressive speleothem formations, including stalagmites and stalactites, in a freshwater Cenote (or limestone sinkhole). Dream Gate Cenote, Tulum, Quintana Roo, Yucatan, Mexico.

Kirkendall-Spring / Multnomah Falls, Columbia River Gorge National Scenic Area, Oregon, USA. March 2016.

Kirkendall-Spring / Multnomah Falls, Columbia River Gorge National Scenic Area, Oregon, USA. April 2016.

Pete Oxford / Whale Shark (Rhincodon typus) and local fisherman freediving, Cenderawasih Bay, West Papua, Indonesia. Winner of the Man and Nature Portfolio Award in the Terre Sauvage Nature Images Awards Competitio...

Pascal Tordeux / Big cloudy sky above tree lined road in distance with vehicles including campervans driving along it, Montreuil, Pas De Calais, France, September 2015.

Constantinos Petrinos / Walls and the impressive gate to enter the grounds of the Debre Birhan Selassie (Trinity and Mountain of Light) Church in the outskirts of Gondar, Amhara Region, Semien Gondar Zone, Ethiopia, Africa,...

Laurent Geslin / Male Alpine Ibex (Capra Ibex ibex) portrait, Alps, France

Andrew Parkinson / The impressive fortress island of Boreray in the World Heritage Site of St Kilda. St Kilda, Outer Hebrides, Scotland, UK. May.

Andy Sands / Privet hawkmoth (Sphinx ligustri) one of the UK's most impressive insects, fifth instar larva on finger to show scale, UK, July, captive

Floris van Breugel / Sunrise over the impressive Palisades view from Mount Agassiz, John Muir Wilderness, the two most prominent peaks are Mount Sill and North Palisade, below which lies the Palisade Glacier. California,...

David Pattyn / Great crested grebe (Podiceps cristatus) male tries to look as beautiful and impressive as possible. he pumps up his head and holds the wings in a circle to look as good as possible, during mating sea...

Andrew Parkinson / Red deer (Cervus elaphus) stag portrait, Leicestershire, UK, October.