The colourful sandstone formations at White Pocket, AZ

Evening in Myrtos, Kefalonia, Greece

Isle of Harris, Outer Hebrides

Blue-Green Algae bloom, Lake Erie, US

Turquoise ice at Lake Baikal, by Alexey Trofimov

Marble Caves in Chile

Yushan National Park, Taiwan

Durdle Door in Dorset, Great Britain

Recent trip to Joshua Tree

Fanning Island, Kiribati

Bull of the Woods Wilderness, Oregon

Bimmah Sinkhole, Oman

The Tallest Forest on Earth - Upper Bull Creek Flats, Humboldt Redwoods State Park, California -