Scotland, Stirling, Loch Lomond and the Trossachs National Park. Arklet Falls and Sniad Burn near Inversnaid during Autumn.

England, North Yorkshire, North York Moors National Park. Thomason Foss waterfall near Goathland in the North York Moors National Park.

England, North Yorkshire, North York Moors National Park. Thomason Foss waterfall near Goathland in the North York Moors National Park.

England, Cumbria, Lake District National Park. Aira Force is a powerful body of water near the shores of Ullswater. A circular walk follows both sides of the falls with a picturesque stone bridge providing the means to cross the 70ft dramatic drop of the water.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Vietnam, Northern Vietnam, Sapa. Cat Cat Falls, a waterfall in Cat Cat village near Sapa.

Laos, Ban Na Hin, Waterfall. Downstream of a waterfall as it cascades through native jungle and bush.

Laos, Ban Na Hin, Waterfall. Shafts of light pass through vegetation hanging to the rock face near a waterfall.

New Zealand, Canterbury, Arthur's Pass National Park. Native bush and the Devils Punchbowl Waterfall.

New Zealand, Southland, Fiordland National Park. The Hidden Falls cascade, found along the route of the Hollyford Track.

New Zealand, Southland, Fiordland National Park. The Hidden Falls cascade, found along the route of the Hollyford Track.

New Zealand, Southland, The Catlins. Abstract view of the Purakaunui Falls in the Catlins Forest Park.

New Zealand, Southland, The Catlins. Purakaunui Falls surrounded by native woodland and bush in the Catlins Forest Park.

New Zealand, Southland, The Catlins. Purakaunui Falls in the Catlins Forest Park.

New Zealand, Southland, The Catlins. Purakaunui Falls surrounded by native woodland and bush in the Catlins Forest Park.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Chile, Southern Patagonia, Torres Del Paine National Park. Rapids on the Rio de los Perro running through a forested gorge on the 'Circuit' track.

Argentina, Misiones, Iguazu National Park. Tagged Coati near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Tagged Coati near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Coati and young near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Alligator / Crocodile river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Alligator / Crocodile river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Alligator / Crocodile river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Alligator / Crocodile river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Alligator / Crocodile river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Birds fly in flocks in front of the impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Close up of the impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Girl crossing a bridge over a river near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. River and jungle near the Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Detail of the impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. Detail of the impressive Iguazu waterfalls – A world heritage site.

Argentina, Misiones, Iguazu National Park. The impressive Iguazu waterfalls – A world heritage site.