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