Want a real fun one? On the the Aeolian island of Volcano you can sit outside in the sulpher mud baths.
They are re-nowned for ther curative properties.
We loved the Aeolian islands off the NE coast of Sicily. We stayed on Lipari, and took day trips on the hi-speed ferries to the other islands. Each island is totally different. The prices are very low for rooms and meals. One even has an active volcano, that you can sometimes climb.
We took a high speed ferry from Millazo out, and came back on the hi-speed to Messina. There are also overnight ferries from Naples that pass by the volcano in the early morning on their way.
Combining the Aeolians with some time in Sicily makes for a memorable trip!