Cave diving in Russia
Russia is getting a lot of attention for the upcoming Winter Olympics, and these 2011 images by Victor Lyagushkin show another side of the country altogether. These images are from the Oral Cave in the Urals region of Russia.
The Oral Cave is the longest gypsum cave in the world, approximately 5.1km long. And the gypsum adds a unique and reflective element to the experience.
Find more images and read the full article here.