You can see Capri from Sorrento. 20 minutes by hydrofoil, ferries year-round, every 20โ30 min in summer. The easiest island hop in the Mediterranean.
Caremar, SNAV, NLG from Marina Piccola to Marina Grande. 20 min flat. Winter: 5โ6 daily. Book on capri.net.
Caremar. Open deck โ better for photos of the Faraglioni on approach.
Hydrofoil, 20 min. Go early, beat the crowds, walk to Villa Jovis and Arco Naturale before the masses. Back by sunset.