Family walk around one of the craters of the highest volcano in Europe
We used cable car and 4x4 bus (you can see the path at the right slope), walk was not exhausting despite the high altitude. Walk is organized (and charged) with guide and his comments and can take 20 - 30 min. The summit is closed for turists from 2010 and accessible only to scientists.
If the visibility was better, there is Catania on the seeside and Calabria in the distance ;o)