The Değirmendere Pier – Büyükada Pier ferry takes 3 h 30 min; 1 sailings run on Sunday; first sailing 09:15, last sailing 09:15; adult one-way from ₺210.
The Değirmendere Pier – Büyükada Pier ferry crossing takes about 3 h 30 min one way.
A Değirmendere Pier – Büyükada Pier adult one-way ticket starts from 210 ₺.
The Değirmendere Pier – Büyükada Pier route runs about 1 departures on Sunday.
The first Değirmendere Pier – Büyükada Pier ferry departs at 09:15 and the last at 09:15.
Değirmendere Pier – Büyükada Pier: 3 h 30 min · regional average: 2 h 30 min (1 h longer)
Figures are computed from our platform's current timetable records.
Operator Info
| Operator | Vessel | Duration | One-Way | Round-Trip | Season | Ticket |
|---|---|---|---|---|---|---|
| Kocaeli Büyükşehir Belediyesi Deniz Ulaşımı Main operator | Kocaeli BB Vapuru | 3 h 30 min | ₺210 | ₺420 | Yaz (Pazar) | Buy Ticket |
Kocaeli BB Vapuru
Features
Kocaelikart/temassız kart · Çay-su ikramı · Yalnızca Pazar · Yolcu
2026 yaz (Pazar): Değirmendere↔Büyükada, ~210 dk. Tam 420 TL / öğr 270 TL. Kocaelikart geçerli.
Buy Ticket| Passenger Type | One-Way | Round-Trip |
|---|---|---|
| Adult Most Popular | ₺210.00 | ₺420.00 |
| Student | ₺135.00 | ₺270.00 |
The Değirmendere - Büyükada ferry is Kocaeli Metropolitan Municipality's summer season service to the Princes' Islands. It operates every Sunday from June 22 to September 21, 2026; departure at 09:15, arrival at Büyükada ~12:15, return at 17:30. A round-trip tour ticket is 350 TL for adults, 225 TL for students, and reservations are mandatory.
The Değirmendere - Büyükada ferry line is part of the special Princes' Islands service organized by Kocaeli Metropolitan Municipality during the summer months. A single ferry picks up passengers sequentially from İzmit at 08:30 → Değirmendere at 09:15 → Karamürsel at 10:00 → Darıca at 11:15, then proceeds to Büyükada. This allows passengers boarding from different districts of Kocaeli to travel directly to Büyükada without transfers. Departure from Değirmendere pier is at 09:15, with arrival at Büyükada around 12:15.
Services operate as round trips every Sunday between June 22 and September 21, 2026. As the line only runs during the summer season and once a week (Sunday), it is designed for those wishing to enjoy a day trip to the island. The ferry stays at Büyükada throughout the day and begins its return journey at 17:30.
Since the ferry also calls at other piers along the İzmit Gulf coast before its departure, the times are set according to the single ferry's route within the gulf. Return services from Büyükada to Değirmendere are listed on a separate page.
Round-trip tour ticket departing from Değirmendere: 350 TL for adults, 225 TL for students. The price includes both outbound and return journeys; it is structured as a single round-trip tour. Ticket prices vary by departure pier — the Darıca departure, closest to the island, offers the most favorable fare.
As space is limited on these services, advance reservations are mandatory. Reservations can be made via Kocaeli Metropolitan Municipality's website at kdu.kocaeli.bel.tr or www.kocaeli.bel.tr. It is recommended to book your spot in advance rather than arriving at the pier on Sunday morning without a reservation.
During the summer months, ferries to the Princes' Islands from within Istanbul become extremely crowded, especially on weekends, with long queues forming at Bostancı and Kabataş piers. This direct service from Kocaeli allows you to reach Büyükada with a pleasant sea journey, completely avoiding Istanbul traffic and crowded transfer piers. The views of both sides of the İzmit Gulf and the Marmara Sea transform the journey itself into a scenic tour.
Since the ferry arrives at Büyükada before noon, there is approximately five hours of sightseeing time on the island. Electric vehicles that have replaced phaetons, bicycle tours, a climb to Aya Yorgi Church, historic mansions, and fish restaurants along the coast provide ample time for a day trip. It is recommended to plan your time on the island to be ready at the pier for the 17:30 return departure.
Kocaeli Büyükşehir Belediyesi yaz dönemi Büyükada seferi. Tek vapur körfez içinde sırayla İzmit (08:30), Değirmendere (09:15), Karamürsel (10:00), Darıca (11:15) iskelelerine uğrar; Büyükada'ya ~12:15 varır, 17:30'da döner. Rezervasyon zorunlu: kdu.kocaeli.bel.tr.
Schedules and prices for this route are compiled from Kocaeli Büyükşehir Belediyesi Deniz Ulaşımı official booking sources and verified by our editorial team before publication. Learn more about our AI-assisted content process and data sources in our editorial process.
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