Mike Mihalik on Twitter: "Here are some @EHS_Hornets students inside the Dragon Glass Ice Cave, which is on top of the Katla Volcano in Iceland. Our patience today paid off with a
Katla Ice Cave Tour – Explore Glacier Caves in Iceland!
Top 10 Ice Cave Tours in Iceland - Iceland Travel Guide
Katla Ice Cave - Super Jeep from Vík | Tröll Expeditions
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Dragon Glass Katla Ice Cave | Super Jeep from Vík
Dragon Glass Katla Ice Cave | Super Jeep from Vik | Skaftafell.com