Athens has three main ferry ports, Piraeus, Rafina and Lavrion, that connect the mainland to the Greek islands.

This is the biggest and busiest port in Greece, located about 6 miles south of Athens city center and today the third busiest port in the world carrying about 20 million passengers a year. Piraeus has sailings to the most popular Greek islands, including the Cyclades, Dodecanese, Eastern Aegean and Crete. The ferry port of Piraeus is served by many Greek ferry operators, including Blue Star Ferries, Minoan Lines, Anek Lines, Aegean Speed Lines and LANE Sea Lines. As well as normal ferries, there are also catamarans, high speed boats and flying dolphins to the Saronic islands.

Metro:
The easiest and quickest, runs 5am to midnight (2am Friday and Saturday).
Athens City: Line 1 (Green Line) every five minutes, journey time is 30-60 minutes (depends where you get on).
Athens Airport: Line 3 (Blue Line) to Monastiraki, change to Line 1 (as above). Every 30 minutes, trip time 75 minutes.

Bus:
Athens City: 049 from Omonia Square and 040 from Syntagma Square until midnight. Port is a 15 minute walk.
Athens Airport: X96 has 24 hour service every 20 minutes, 40 minutes after midnight, journey time about 90 minutes, longer in heavy traffic.

A small town about 19 miles the north of Athens and 6 miles from Athens airport. Rafina has regular sailings to the Cyclades islands of Andros, Tinos and Mykonos.

Bus:
Services leave from Pedion Areos every hour, trip time about 60 minutes. There are KTEl #2 buses from Athens Airport every hour from 5.45am to 8.45pm, journey time about 30 minutes.

A small resort on the tip of the Attica peninsula about 38 miles from Athens and 15 miles from Athens Airport. It serves islands such Kea and Kythnos. From Kea there are ferries to Anafi, Ios, Folegandros, Kimilos, Milos, Naxos, Paros, Santorini, Sikinos, Syros and Thirassia. Ferries leave here for Aegean islands, notably Lemnos, Thassos and Samothraki.

Bus:
KTEL runs from Pedion Areos every hour, trip time about 90 minutes. KTEL buses #10 and #11 from Athens Airport every hour 6.30am to 10pm, journey time is 30 minutes.