Ice cave in the Skaftafell National Park in Iceland. Ice caves collapse and new ones form as each glacier grinds slowly towards the sea. Local guides can help you (without dying) find one. (Visit Skaftafell National Park in Iceland.
Ice Cave Wave - by Snorri Gunnarsson (The ice cave in Breiðarmerkurjökull has shrunk a little, and has a few openings that add more light and change the images completely. Very beautiful when it has new snow covering everything.