The natural ice palace on the Hintertux Glacier in Austria is a beautiful glacier cave with icicles, a glacial lake and a research shaft.
caves
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Shipwrecks, caves, rock arches, canyons and underwater mountains. Diving in Malta is known for its spectacular underwater scenery.
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Discover block tombs and burial caves in Petra Jordan. The first block graves and burial caves are already located just behind the main entrance in the direction of the rocky gorge, the Siq.