The Saronic Gulf islands — Aegina, Hydra, Poros and Spetses — lie within an hour or two of Piraeus and make the most accessible island escapes from Athens. Ferries and hydrofoils leave the port continuously on summer mornings; knowing which type to take, and when, makes the difference between a smooth day trip and an unnecessary scramble.
The islands and their character
Each Saronic island has a distinct personality:
- Aegina is the largest and most agricultural — famous for its pistachios and for the Temple of Aphaia, one of Greece's best-preserved ancient temples.
- Hydra is the most famous and the most atmospheric. Cars and motorbikes are banned; transport is by donkey, boat or foot. Artists, writers and well-heeled Athenians have been drawn here since the 1960s.
- Poros sits barely a couple of hundred metres from the Peloponnese coast, separated by a narrow channel that makes for one of the most dramatic harbour approaches in the Aegean.
- Spetses is the furthest from Athens but rewards the longer journey with pine forests, beautiful beaches and an elegant neoclassical old quarter. Motor vehicles are restricted, though not as strictly as Hydra.
Getting to Piraeus
Piraeus is Athens' main port and is straightforward to reach from the city. The Metro Line 1 (green line) runs directly from the city centre — including Monastiraki and Omonia — to Piraeus station in about 30–40 minutes. From Athens International Airport, take Metro Line 3 to Monastiraki and change to Line 1, or take a direct bus; allow a comfortable 90 minutes from the airport to the ferry gates.
Gate E8 and the area around it serves the majority of Saronic hydrofoil and catamaran departures. Large conventional ferries to Aegina depart from the main quay areas. It can feel chaotic on a summer morning — arrive with some buffer time and look for the destination boards at each gate.
Types of ferry: conventional versus hydrofoil
Two kinds of vessel operate the Saronic routes, and the difference matters:
- Conventional car ferries: slower, cheaper, and carry vehicles. The crossing to Aegina takes around 1 hour 10–20 minutes. Good for foot passengers who want a leisurely crossing or are taking a bike.
- Flying Dolphins (hydrofoils) and flying cats (catamarans): faster, more expensive, and passenger-only. Aegina in about 35–40 minutes, Hydra in around 1 hour 30 minutes, Poros in about 1 hour, Spetses in roughly 2 hours from Piraeus. These are the dominant option for day trips.
Operators including Hellenic Seaways and Aegean Speed Lines run the fast ferry services. The conventional ferry to Aegina is operated by various companies and is popular with local commuters as well as visitors.
Aegina: the classic day trip
Aegina is the easiest Saronic day trip from Athens. The town harbour is full of cafés and fish restaurants; a short bus ride up the hill reaches the Temple of Aphaia with views across to Athens on clear days. The pistachio shops along the harbourfront are not tourist kitsch — Aeginetan pistachios really are excellent.
Multiple sailings run throughout the day, so there is no pressure to catch a specific boat back. In summer, however, the late afternoon boats back to Piraeus fill up fast with day trippers — if you want a comfortable return, aim to leave before the main rush or book a specific return sailing.
Hydra: the car-free jewel
Hydra requires more time than a single day to fully appreciate, but a day trip is perfectly feasible. The stone houses rising up from the horseshoe harbour, the cats, the donkeys and the complete absence of engine noise create an atmosphere that many visitors find genuinely restorative. Book your forward and return hydrofoil in advance in peak summer — Hydra is popular and the boats are not enormous.
There are no day trips to specific beaches from Piraeus per se, but water taxis from Hydra town reach swimming spots around the island in minutes.
Poros and Spetses
Poros suits travellers who want the combination of a pretty island town and easy access to the Peloponnese coast opposite. From Poros you can take a short five-minute ferry to Galata on the mainland and visit the ruins of ancient Troizen or the lemon groves along the shore. The island itself is small enough to explore on a hired scooter in a few hours.
Spetses is worth the longer crossing — around two hours from Piraeus — for its blend of neoclassical architecture, horse-drawn carriages (the island's main taxi), and some of the best beaches in the Saronic. It rewards a two-night stay over a day trip.
Combined island routes
Many hydrofoil and catamaran services run island-hopping routes that stop at multiple Saronic islands in sequence — for example Piraeus → Aegina → Poros → Hydra → Spetses. This makes it easy to spend a night on two different islands without returning to Piraeus each time. Check the timetable carefully: on these multi-stop routes, times between islands can be short, and the boat does not wait long.
For a deeper dive into the broader Greek ferry system — including how booking works and the differences between vessel types — see Greek island ferries on Viamo.
Booking tickets
Tickets can be bought at the gate on the day for most Saronic sailings, but in July and August advance booking is advisable — particularly for the return trip from popular islands like Hydra on Friday afternoons and Sunday evenings, when Athenians are heading home. Book online through the operators or via Greek ferry booking aggregators.
For a broader guide to booking European ferries, including how aggregators work, see how to book ferries.
Practical notes
- Season: peak services run from April through October. Winter services are reduced and some routes are less frequent.
- Weather cancellations: the Saronic Gulf is generally sheltered, but strong winds (especially the meltemi in summer) can delay hydrofoils, which are more weather-sensitive than conventional ferries.
- Arriving on Hydra: the quayside fills with boats and people in summer. Keep your belongings close and watch the gangway carefully.
- Cyclades connection: the Saronic islands are separate from the Cyclades network (Santorini, Mykonos, Naxos, etc.) and use different operators and ports. If you want to combine both, you return to Piraeus and book a separate Cyclades service.
Frequently asked questions
How long is the ferry from Piraeus to Hydra?
On a fast hydrofoil or catamaran, Piraeus to Hydra takes approximately 1 hour 30 minutes to 1 hour 45 minutes. Slower conventional ferries take longer but also stop at other islands en route.
Can I visit two Saronic islands in one day trip from Athens?
Aegina and Poros can be combined in a long day if you use fast ferries and move efficiently, but it feels rushed. Most travellers choose one island per day, or stay overnight to make the journey worthwhile.
Do I need to book Saronic ferry tickets in advance?
On busy summer days — particularly for Hydra and Spetses — advance booking for peak departure times is wise. Walk-up tickets are usually possible outside peak hours, but popular departures can sell out.
Are there cars allowed on the ferries to Hydra?
Hydra does not permit private cars on the island, so taking a vehicle there is pointless. The hydrofoils that serve Hydra are passenger-only anyway. Conventional car ferries serve Aegina and can carry vehicles.
Sources and further reading:
- Timetables and online booking: Hellenic Seaways (hellenicseaways.gr) and Aegean Speed Lines.
- Ferry aggregator: Ferryhopper (ferryhopper.com) covers most Greek routes.
- Athens transport to Piraeus: Athens Urban Transport (stasy.gr).