the top etna volcano sicily

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$An all-terrain bus is ready to take tourists to the top of Italy\'s Mount Etna volcano, Europe, Etna, Sicily, Italy Royalty Free Stock Photo$

$Off-road buses take tourists to the top of Italy\'s Mount Etna volcano when no cable car is running, Sicily, Italy Royalty Free Stock Photo$

On the top of etna volcano the rock is covered with sulphur and became yellow, cloud of toxic gas spread from the crater