Devetashka cave, Bulgaria by Silvia S.

Oh wow - spectacular shot!

Glowworm Caves New Zealand

Multnomah Falls, Oregon, US

Caves

The Cave of Three Bridges.

"Hidden in the depths of the Vietnamese jungle lies The Hang Son Doong, part of a network of over 150 caves. Surrounded by jungle and used in the Vietnam war as a hideout from American bombardments, the cave passage is so large that it could hold a block of 40-storey skyscrapers."

Kruger Park South Africa

TURRELL’S IRISH SKY GARDEN, CO CORK IRELAND | Click to see more. Real WoWz

Topo Designs Daypack hiking through Villa de Leyva, Colombia with findingsalongtheway.com

Lava Tube Cave, Tulelake, California

Rock Pools, Canada

Slovenian Caves

Waterfall Walkway, St. Beatus Caves, Switzerland

Waterfall, Glacier National Park, Montana

Devetashka Cave, Bulgaria

Cenote in the Yucatan Peninsula / Unknown

Caves in Lagos, Portugal

Vøringfossen waterfall which plunges into this gorge of the Eidfjord, Norway. #Norway by Stephen Emerson

Devetashka Cave, Bulgaria