The body of water that separates the Italian mainland from Sicily is the Strait of Messina. This narrow strait connects the Tyrrhenian Sea to the north and the Ionian Sea to the south. It plays a critical role in maritime navigation and regional trade, as it serves as a crucial transit route for commercial and passenger vessels. The Strait of Messina is also rich in cultural history, marking the boundary between the regions of Calabria and Sicily. Its scenic views and historical significance attract tourism, highlighting its geographical importance.