NBC News (NBC) - A new ice-cave discovered in Iceland is celebrated as both breathtaking and dangerous.
Recently a new ice-cave was discovered in the glacier Blagnipujokull, a glacier tongue in the southwest of Hofsjokull (the third largest glacier in Iceland).
The cave has since been visited by many.
Despite its beauty, a professor in geophysics strongly advises against people visiting the cave.
The cave was formed because of geothermal heat and therefore some dangerous gases like hydrogen sulfide and carbon monoxide can be found inside the cave.
The risk of collapse in the ice is also high in these melting circumstances.
Those who visit the cave are advised to always carry gas-masks and gas-measuring device.
The Icelandic MET Office has also issued a warning against visiting the cave.