Buckskin Gulch, Kolob Canyon, Utah

Sunrise over Dolly Sods, West Virginia

The Springs Resort and Spa at Arenal, Costa Rica

Light beams

Appalachian Trail, Smoky Mountains, Tennessee

Devetashka Cave, Bulgaria

Algonguin Park - Ontario

Jewel Cave, Augusta, WA, Australia

Loch Lomond, Scotland

Grand Teton National Park, Wyoming

Rainbow over Cathedral Rock: Sedona, AZ, USA

St Magdalena Village in Val Di Funes, South Tirol, Italy

Blue Ice Cave, Antarctica, December 2011.