On Sardinia there are lots of beautiful tours you can do.
For example: visit the beach of Porto Fino, ride the train ” Trenino Verde”, visit the Nuraghian-Village Su Nuraxi or go to the cliffs of Capo Sperone, which are falling straight into the sea.
You may also visit the ”Grotta di Nettuno” , which is said to be one of the most beautiful grotts in the whole mediterrean area.