Positano is the rare Mediterranean departure point with nothing to get wrong about which quay — because there is only one — and everything to get wrong about reaching it.
The town has no port. Ferry portals put it in the same words: the passenger guide at traghettiup.com describes a single quay and pier in the inlet in front of Spiaggia Grande, and positano.com's route pages add the sentence that matters, that Positano has a small pier which closes when the sea is rough. Everything floating leaves from there — Travelmar and Alicost to Amalfi and Salerno, NLG and Alilauro to Sorrento and Capri, Lucibello's own boats, and every group tour on this page that starts in Positano.
The pier is at the eastern end of the beach, and the boats sell from gazebos and kiosks strung along the sand in front of it rather than from a terminal. Positano Boats tells passengers to check in at a blue-and-white gazebo ten minutes before departure; Lucibello's reception is a white gazebo above the steps down to the water. A confirmation that says only "Positano beach" is not an address at half past eight in the morning — find the operator's name on the awning before you queue.
The approach is the real subject. There is no vehicle drop-off at the harbour: positano.com's own boat-tour page says the walk from the village centre takes ten to fifteen minutes and involves several flights of steps, and the local parking guides put the descent from the upper town at two to three hundred steps on Via Pasitea and the staircases that shortcut it. The SITA Sud coaches from Sorrento and Amalfi stop at La Sponda on the high road, not in the town. Going down with a swim bag is nothing. Coming up at seven in the evening, on a hot day, after four hours in the sun, is the part nobody books for.
Two ways to soften it. Mobility Amalfi Coast's internal bus loops the town all day — €1.30 from a shop displaying their sign, €1.80 on board, €4 for the day — and gets you as close to the beach as any wheel does. Or pick a boat short enough that the climb comes while you still have legs: the forty-minute bay lap is back at the pier before lunch.
Fornillo, the next cove west, has its own small landing and its own beach clubs, and the Sentiero degli Innamorati path connects it to the main pier in ten to fifteen minutes — with, inevitably, more steps. Some water taxis and beach-club tenders use it. No scheduled ferry does.