Scilla sits on a rocky promontory above the Strait of Messina, where the Tyrrhenian meets the Ionian and the cliffs of the Costa Viola drop straight into clear water. Boat cruises here are a nature-first way to see that coastline, and the 2-Hour Boat Tour: Scilla and the Costa Viola covers the sea caves and rock formations in a compact outing, while the Scilla: Sunset Boat Tour with Alfotour trades midday sun for golden-hour light over the strait.