Korallgrottan, Marble cave in Ankarvattnet, Sweden
Korallgrottan is a cave system in Ankarvattnet that extends through marble bands for several kilometers and contains numerous chambers. The interior displays formations shaped by water over thousands of years and features various mineral structures throughout.
The cave was discovered in 1985 by the Swedish Speleological Society and subsequently designated as a protected reserve. It later received Natura 2000 status to preserve its geological significance.
The name Korallgrottan refers to small mineral formations inside the cave that resemble coral structures. Walking through the underground passages, you can spot these delicate formations throughout the system.
Visitors should wear sturdy footwear since the underground passages are uneven and damp. The temperature inside remains cool year-round, so a jacket is recommended.
The cave system contains an underground lake that is rarely accessible and requires special exploration. This hidden body of water offers a rare look at the complete dynamics of the cave ecosystem.
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