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 that leads from the port of Vulcano to the thermal area of the Levante beach is also the same colour.
This colouring is not entirely uniform; it has patches of various intensities on a grey background, the original colour of the rock. It is slightly reminiscent of the dazzling combination of colours of the impressionists, which were uneven and never trivial.