The presence of constantly active fumaroles reminds us that the island of Vulcano is an active volcano.
The Stack, the rock overlooking the port, is a wonderful natural tower that is now completely yellow and white due to the sulphur and gypsum that have crystallised along its sides. The road from the port of Vulcano to the thermal area of the Levante beach is also the same colour. With all this yellow and sulphur you might feel like you are walking along one of the avenues of hell.
However, this colouring is not entirely uniform; it has patches of various intensities on a grey background, the original colour of the rock.
