Photo of the Day

September 19, 2016

Glass Ceiling

A visitor explores an ice cave near Iceland’s Jökulsárlón glacial lagoon. The tremendous weight of the ice compresses the air bubbles out of the cave walls, resulting in this glassy blue hue. This photo was submitted to Your Shot, our photo community on Instagram. Follow us on Instagram at @natgeoyourshot or visit us at for the latest submissions and news about the community.
Photograph by Ridwan Prasetyo, National Geographic Your Shot

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