Tip · Day trips from Istanbul
The Princes' Islands — Adalar in Turkish — are a nine-island chain in the Sea of Marmara, ~20 km southeast of central Istanbul. Only five are inhabited, only four are worth visiting, and roughly 85% of day-trippers head for Büyükada, the largest. The islands ban private cars, so you get around on foot, by bicycle or by electric golf cart. Ferries leave from Kabataş on the European side (~50–90 minutes) and from Bostancı on the Asian side (~30 minutes fast). This guide covers which island to pick, which ferry to board, what to do on Büyükada and how to time the day so you don't spend the afternoon queueing for the return boat.
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01 · The nine islands
A quick geography lesson so the ferry timetable and pier choices make sense.
The Princes' Islands — Prens Adaları or simply Adalar — are a nine-island chain in the Sea of Marmara, roughly 20 km southeast of central Istanbul. In the Byzantine era they were places of exile for out-of-favour royals, which is where the name comes from. In the 19th and early 20th centuries they became a summer retreat for the wealthy of Istanbul — Greek, Armenian, Jewish and Turkish families all built restored waterfront houses that still line the piers today.
Only five of the nine are inhabited or accessible: Kınalıada (smallest, mostly Armenian community), Burgazada (quiet writer/artist retreat), Heybeliada (home of the closed Greek Orthodox theological school), Büyükada (largest, most visited) and tiny private Sedef Adası. Tourism concentrates almost entirely on Büyükada — roughly 85% of day-trippers get off there — with Heybeliada as the natural second stop.
Three things set the Adalar apart from anywhere else in Istanbul.
02 · Which island to visit
Four of the islands are open to tourists. This is how to pick between them for a one-day visit.
Büyükada — literally "big island" — has the best pier village, the best seafood restaurants, the two best beaches, the Aya Yorgi monastery walk and a ~10 km ridable perimeter loop. If you have one day and no strong reason otherwise, this is the answer. Expect crowds on summer weekends and quieter days midweek. Ferry pier is the natural anchor for the visit; almost everything worth doing is within a 10 km bike ride of it.
Heybeliada — "saddlebag island" — is the previous stop on the ferry line from Kabataş and one option for a second island on the same day. It's smaller, quieter, has one main pier village, several small beaches and the famous Greek Orthodox theological school on a hill (closed to the public since 1971 but visible from the water). A common two-island day trip is: Kabataş → Büyükada (main visit) → hop across to Heybeliada for an hour → return to Kabataş.
The two smaller islands earlier on the ferry route are worth a stop only if you already know Istanbul or want the very local feel.
If you have only one day, go straight to Büyükada and don't try to hop between islands — the ferry timetable eats more hours than the extra islands add.
03 · Ferry options
Four different operators, two speeds, two departure sides. Here's how they compare.
Municipal public ferry line. Departs Kabataş or Eminönü, ~90 minutes to Büyükada via intermediate island stops. Fare ₺30–60 per leg with an İstanbulkart. Roughly hourly from 06:30 to around 00:00. Cheapest option, most atmosphere — open-air upper deck, tea service.
Private operator running the same slow route from Kabataş at similar speed and price to Şehir Hatları. Extra departures at peak times fill gaps in the public schedule. Buy tickets at the pier kiosk or with İstanbulkart on some services.
Fast catamaran from Kabataş to Büyükada in ~50 minutes. Fare ₺100–200 per leg. Enclosed air-conditioned cabin, assigned seating on some sailings. Faster and pricier than the public ferry but still leaves from central Kabataş.
Fast catamaran from Bostancı on the Asian side to Büyükada in ~30 minutes. Fare ₺100–150 per leg. The shortest crossing to the islands and the natural choice if you're staying on the Asian side or landing at Sabiha Gökçen.
İstanbulkart works on Şehir Hatları and Turyol — top up at the pier machine. Dentur Avrasya and BUDO use their own kiosks or apps and take cash and cards. Buy your return ticket on the outbound leg on peak days to skip the queue.
Strong Marmara southerlies (lodos) cancel fast catamarans first, then the public ferry. Check operator websites the evening before if the forecast is windy. Cancellations are more common in winter but happen occasionally in spring too.
04 · Best departure pier
Four possible piers. The right one depends on which side of Istanbul you're staying on.
Kabataş on the European side is where most first-time visitors board. Reached by the F1 funicular from Taksim (~90 seconds down), the T1 tram from Sultanahmet or Karaköy, or a taxi from anywhere on the European side. Both Şehir Hatları / Turyol slow ferries and Dentur Avrasya fast catamarans depart here. If you're staying in Beyoğlu, Karaköy, Taksim, Sultanahmet or Beşiktaş, Kabataş is your pier.
Bostancı on the Asian side is the closest mainland pier to the islands, which is why BUDO fast catamarans reach Büyükada in ~30 minutes. Reached by the Marmaray tunnel train from Sirkeci (~25 min) or a taxi from anywhere on the Asian side. If you're staying in Kadıköy, Fenerbahçe, Ataşehir or nearby, or if you land at Sabiha Gökçen airport, this is by far the sensible pier.
Two more piers see occasional service — good to know but rarely optimal.
Rule of thumb: European-side hotel → Kabataş. Asian-side hotel or SAW airport → Bostancı. Only use Eminönü or Kadıköy if you're already there and the schedule fits.
05 · On Büyükada
You've landed. Now what.
The classic Büyükada experience is riding or walking the perimeter road around the island. Full loop is roughly 10 km — around 3–4 hours on foot, 90 minutes on a bike, less on an electric bike or scooter. Waterfront villas, pine woodland, small coves.
Rental shops cluster in the pier village. Standard bikes ₺200–300 for a half day, e-bikes and scooters ₺300–500. Bring photo ID and a cash deposit. Electric golf carts are also available for groups of four.
Iconic uphill walk to the Aya Yorgi Greek Orthodox monastery on the island's highest hill — roughly 1 hour from the pier. Local tradition: pilgrims tie ribbons or written wishes on trees along the path. Café and panoramic sea view at the top.
Two small pay beaches on the far side of the island. Sun loungers, changing rooms, drinks bar. Water is calm and clear in summer. Bring a towel — rental options are limited. Entry is roughly ₺100–300 per person depending on season.
A dozen or so seafood restaurants line the main pier street. Grilled fish, meze, rakı — pricey by Istanbul standards but the setting justifies it. Look for boards showing daily catch. Reserve a table on summer weekends.
The historic fayton horse-drawn carriages were suspended in 2020 over animal welfare concerns and replaced by electric carts. Do not plan around them. Some limited fayton activity has returned in later years but expect e-vehicles rather than horses.
The uphill path to the monastery is fully exposed in July and August, with few taps along the way. Bring at least a 1 litre bottle per person, wear real shoes rather than sandals, and avoid the walk in the midday heat. The café at the top sells drinks but the trail itself has none. In shoulder season the walk is one of the highlights of the day — in high summer it's a slog if you're unprepared.
06 · Timing
A weekday morning departure and a mid-afternoon return is the whole trick.
Aim for a weekday — Tuesday, Wednesday or Thursday. Saturdays and Sundays in July and August are the peak of the peak: local families day-trip from central Istanbul and the return ferry pier can develop 1–2 hour queues at 17:00–19:00. Depart 09:00–10:00 on the fast catamaran (or 08:30 on the slow ferry) to arrive on the island by 09:30–11:30 with the whole day still ahead.
The return rush hits from around 17:00. If you can, board a fast catamaran back at 15:30 or 16:30 — you'll walk on. Alternatively, wait until after 19:00, once the day-trip wave has cleared, and take an evening ferry with a sunset view. The very last services depart around 22:00–23:30 in summer — check the pier board on arrival and photograph the timetable in case your phone dies.
The Adalar are a shoulder-season destination — spring and early autumn are objectively better than midsummer.
07 · Watch-outs
Common, avoidable, all pattern-matched from a decade of Adalar day-trip regret.
Peak-summer weekends bring enormous day-trip crowds from central Istanbul. Expect a 1–2 hour queue for the return ferry between 17:00 and 19:00. Move the trip to a weekday if you possibly can, or accept a very early or very late return.
Ferry schedules and pier queues eat more time than the extra islands are worth. Pick Büyükada plus at most Heybeliada. Kınalıada and Burgazada are worth a dedicated second trip if you're staying longer in Istanbul, not a rushed hop.
The iconic horse-drawn carriage rides were suspended in 2020 over animal welfare and effectively replaced by electric carts. Some limited returns have been reported but do not plan around them. Rent a bike or an e-scooter instead.
The uphill path is fully exposed and taps are rare. A 1-litre bottle per person is the minimum in summer. Sandals are a mistake — real trainers or hiking shoes make the climb far more pleasant.
Last services depart Büyükada around 22:00–23:30 in summer, earlier off-season. Photograph the timetable on the pier when you arrive so you have it after your phone dies. There are no taxis or bridges to bail you out.
The perimeter loop looks small on the map but is 3–4 hours on foot in summer heat. A bike or an e-scooter turns it into a comfortable 90 minutes with stops. Walking is fine if you cover only half the loop and turn back at Nakibey beach.
Büyükada rewards slow exploration — a swim, a lunch, the walk up to Aya Yorgi, a bike ride through the pine woods. A 90-minute in-and-out visit for one Instagram photo will feel like a wasted crossing. Give the island at least four hours on the ground.
If you arrive fresh from the airport, do not bring a suitcase. There is no formal left-luggage on Büyükada — some restaurant owners will hold a bag as a favour but you can't count on it. Store bags at IST or SAW arrivals baggage storage, or at your hotel, and travel day-trip light.
08 · FAQ
The most-asked questions from travellers planning an Adalar day in 2026.
By ferry only — the Princes' Islands (Adalar) sit ~20 km southeast of central Istanbul in the Sea of Marmara. From the European side, board a Şehir Hatları or Turyol ferry from Kabataş (~90 min slow, ₺30–60 per leg with İstanbulkart) or a Dentur Avrasya fast catamaran from Kabataş (~50 min, ₺100–200). From the Asian side, BUDO fast catamarans from Bostancı reach Büyükada in ~30 minutes for ₺100–150. There are no bridges, cars or private boats for tourists.
Büyükada by default. It is the largest of the five main islands and takes roughly 85% of day-trip visitors — best restaurants, best beaches, the Aya Yorgi walk, and the classic car-free waterfront. If you have a second day or want a quieter stop, add Heybeliada on the same ferry line for a shorter walk and a smaller pier village. Kınalıada and Burgazada are worth it only if you already know Istanbul and want the local feel rather than the sights.
It depends on operator and departure pier. From Kabataş the slow Şehir Hatları or Turyol ferry takes ~90 minutes; the Dentur Avrasya fast catamaran takes ~50 minutes. From Bostancı on the Asian side, BUDO fast catamarans reach Büyükada in ~30 minutes — the shortest crossing available. Eminönü Şehir Hatları services also run but with a slower total time via intermediate island stops.
Şehir Hatları and Turyol public ferries are ₺30–60 per leg with an İstanbulkart. Dentur Avrasya fast catamarans from Kabataş are ₺100–200 per leg. BUDO fast catamarans from Bostancı are ₺100–150 per leg. A return trip on the slow ferry from Kabataş therefore costs roughly ₺60–120 total; a fast return from Bostancı ₺200–300. Prices are per person, one way — buy return separately.
Largely no. The iconic fayton horse-drawn carriage tours were suspended in 2020 over animal welfare concerns and have been replaced by electric golf carts and small e-vehicles operated by the island municipality. Some limited fayton activity has returned in later years but do not plan a trip around it. Renting a bike or an electric scooter from the pier area is the standard way to circle the island in 2026.
Yes — a day trip is the normal way to see the islands. Depart Kabataş on a fast ferry around 09:00–10:00 (or the slow ferry at 08:30), spend 4–5 hours on Büyükada walking, biking or eating, and return on a ferry between 15:30 and 17:00 to avoid the late-afternoon rush. Total door-to-door from central Istanbul is 8–10 hours. An overnight stay is possible but not necessary for first-time visitors.
A weekday — Tuesday, Wednesday or Thursday is ideal. Saturday and Sunday in high season (July and August) bring enormous crowds of day-trippers from central Istanbul, and the 17:00–19:00 return ferries can develop 1–2 hour queues at the Büyükada pier. Off-season weekends (April, May, September, October) are manageable but weekdays are still calmer. Winter weekdays are the quietest but many restaurants and rental shops close.
From Istanbul Airport (IST) the fastest option is a taxi — ~50 minutes and roughly ₺1,400 including tolls, direct to the Kabataş ferry terminal. By public transport, take the M11 metro to Gayrettepe, change to M2 southbound, then the F1 funicular from Taksim down to Kabataş — total ~90 minutes for ₺30–50 with an İstanbulkart. The Havaist HVIST-12 coach to Taksim plus the F1 funicular is a middle option at ~75 minutes and ₺220–380.
Yes — Bostancı is much closer to the islands geographically, so BUDO fast catamarans from Bostancı reach Büyükada in ~30 minutes versus ~50 minutes on Dentur Avrasya from Kabataş and ~90 minutes on the slow ferry. If you are already on the Asian side, or if you land at Sabiha Gökçen (SAW), Bostancı is the sensible pier. From central European-side hotels the extra time to reach Bostancı usually cancels out the shorter crossing.
Yes — Büyükada has a handful of restored 19th-century hotels, small pansiyons and private rentals. An overnight makes sense in shoulder season (April–June, September–October) when the island empties out after the last afternoon ferry and you can walk the seafront in the cool. In July and August rooms are limited and pricey. Bring a light bag — there is no formal luggage storage and getting around the island with a suitcase is impractical.
