Procida can be reached from three different piers: the first two, Calata di Massa and Molo Beverello, are both located in Naples, and are not far from each other. Ferries leave from the first: these take about 1 hour to reach the island, while the second is intended for hydrofoils, which reach their destination in 45 minutes. The third, on the other hand, is the pier of the port of Pozzuoli, which is the shortest and cheapest route: in 35 minutes you can arrive on the island. If you depart from Naples, the reference companies are Caremar (ferries and hydrofoils) and SNAV (hydrofoils only), while if you depart from Pozzuoli the reference companies for the ferry route are Gestour, Medmar and Caremar.
During the high season it is always recommended to book tickets online, to avoid long queues or unpleasant surprises when boarding.