The Island of Capri is linked to Napoli by ferry or high speed boats. To reach the Naples port from the airport or from the train station follow the instructions below :
CAPODICHINO AIRPORT - CENTRAL TRAIN STATION - PORT
The bus service ALIBUS is continuously available from 6 a.m. to midnight every 10 to 20 minutes (timetable). It is a circular line that connects the AIRPORT, the MAIN TRAIN STATION and the PORT. Tickets can be purchased online or by ticketing machines at the arrivals terminal or onboard by the bus driver.
Another option would be to take a taxi, don't forget to ask for the flat rate (21€ from airport to port).
From the Central Train Station another option to reach the port is to take the subway (metro linea 1) from "Garibaldi" to "Municipio".
NAPLES PORT - CAPRI ISLAND
The Naples Port is linked to the Island of Capri via slow speed boat (TRAGHETTO) or high speed boat (ALISCAFO).
High speed boats SNAV or NLG leave from MOLO BEVERELLO, the trip takes around 45 minutes and the cost is around 24€ one way.
We suggest you to book your seat in advance.
High and slow speed boats CAREMAR leave from PORTA DI MASSA, the trip takes 1 hour (high speed - TMV) or 1,5 hours (slow speed - FERRY) and the cost is from 17€ to 24€.
To go from Molo Beverello to Porta di Massa is about 12 minutes walking distance
CAPRI PORT (MARINA GRANDE) - ANACAPRI
Once you arrive in Marina Grande, you need to take a bus to Anacapri (2€). Buses are small due to the narrowness of the roads and fill up rapidly, so either you stay in the line for some time, or you take a taxi (approx 25€ for up to 4 people).
Capri guide is available here : https://www.capri.net/