Kiwihug

Ksenia Kudelkina

a light shines through the opening of a cave

Intricate Explorer

person on top of rock formation inside cave

Daniel Burka

Robert Thiemann

Hikersbay Hikersbay

cave with calm body of water during daytime

Timo Volz

Lê Tân

a large piece of art is lit up in the dark

I took that image in a former romanian salt mine. It was one of the darkest, most surrealistic and impressing place I have ever been. You could even play minigolf and table tennis down there. The photo shows the 120 meter high vertical main tunnel.

Cavern