The Coral Cave ( sv, Korallgrottan) is a marble cave at the northernmost tip of

Jämtland Jämtland (; no, Jemtland or , ; Jamtish: ''Jamtlann''; la, Iemptia) is a historical province () in the centre of Sweden in northern Europe. It borders Härjedalen and Medelpad to the south, Ångermanland to the east, Lapland to the north a ...

, near Ankarvattnet,

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

. It was discovered in 1985. So far, six kilometres of it have been explored, making it Sweden's longest cave.Korallgrottans naturreservat
/ref> Members of the public are not allowed to visit the Coral Cave without a guide.

References

Caves of Sweden Landforms of Jämtland County {{Jämtland-geo-stub