Liberty Lines runs frequent hydrofoils to Santa Marina Salina from Lipari (€10.30, 20 to 40 minutes), Vulcano (€11.90, 40 minutes to one hour) and Milazzo (€19.05, 1½ to two hours). Less frequent services connect Santa Marina with Stromboli, Panarea, Filicudi and Alicudi. Liberty Lines also offers daily sailings to/from Messina (€30.35, 2¼ to three hours, three daily in summer, one in winter). Some of these services call at Rinella en route. The ticket office is on the square 100m north of the hydrofoil dock.
Alternatively, you can travel from Naples to Santa Marina Salina aboard the biweekly ferry (from €52, 10¾ hours) operated by Siremar, or the daily, summer-only hydrofoil (from €58, 5¾ hours) operated by SNAV.