Great Sand Dunes National Park and Preserve

Rainbow over Cathedral Rock: Sedona, AZ, USA

Medicine Lake in Glacier National Park

Musandam, Oman -

Verzasca river, Ticino, Switzerland

Villetta Barrea, Abruzzo, Italy

Green canyons of Iceland

Li River, Guilin, China

Blue Ice Cave, Antarctica, December 2011.

Leo Carillo, CA

Bugaboo Glacier Park, British Columbia

Farmlands in rural Australia

The colourful sandstone formations at White Pocket, AZ