The sea is bounded by Corsica and Sardinia ( to the west ) , the Italian peninsula ( regions of Tuscany , Lazio , Campania , Basilicata , and Calabria ) to the east , and Sicily ( to the south ) .
The sea touches the borders of these regions : Corsica and Sardinia ( west ) , Tuscany , Lazio , Campania , Basilicata , and Calabria ( east ) , and Sicily ( south ) .