This is a relaxed one-day plan built around Büyükada, the largest and best-served island, with an optional stop on quieter Heybeliada on the way back. You'll see exactly which ferries to take, where your pass does the work, what a bike costs, and where to eat so the only thing you decide on the day is how slowly to pedal.
Why this day trip is good value The islands run on walking, cycling, and electric shuttles there are no taxis to drain your budget, and the public ferry is the only thing you really pay to ride. A guided island walk and the ferry crossing are covered by your pass, so the day's biggest fixed costs are handled before you board. Lunch is fresh fish by the water and bike hire is cheap the rest is free sea views, pine shade, and one of the best ferry rides in the city. Every price below is tagged with the month, because Istanbul's prices move quickly. |
Why the Princes' Islands are worth a full day
The Adalar were once a place of exile for Byzantine princes and later a summer retreat for Istanbul's wealthy Greek, Armenian, and Jewish families which is why the islands are dotted with grand wooden köşk (KURSHK, summer mansions) and old churches and monasteries. Today they are a protected zone with a near-total ban on combustion-engine cars, so the pace drops the moment you step off the boat.
Of the nine islands, four take regular passengers. Büyükada (Big Island) is the largest and liveliest, with the most to see and the best ferry frequency. Heybeliada (Saddlebag Island) is greener and calmer, good for a short second stop. Burgazada and Kınalıada are smaller and more residential. For a single day, Büyükada plus an optional Heybeliada break is the sweet spot enough to fill the hours without rushing the last ferry home.
Getting there: which ferry, from where
Public ferries to the islands leave mainly from two terminals: Kabataş on the European side and Bostancı on the Asian side, with some sailings from Eminönü and Kadıköy. Kabataş is the most convenient if you're staying near Sultanahmet or Beyoğlu the T1 tram and the funicular both feed into it. From Kabataş ferry terminal the run to Büyükada takes about 80–90 minutes, calling at the other islands first.
Two operators share the route. Şehir Hatları runs the classic large ferries slower, but with open decks, tea service, and the best views; check sailings on the Şehir Hatları timetable. Dentur Avrasya and similar lines run faster, enclosed boats that shave time off the crossing. A standard public ferry fare is around 40–70 TL each way with an Istanbulkart (May 2026); the guided-island option that comes with your pass covers the crossing as part of the experience, so you tap on and go.
Aim for a ferry that puts you on Büyükada by late morning. Sailings thin out in the evening, so note your return time on arrival and don't get caught chasing the last boat.
How your pass fits the island day
The pass is built for the headline monuments in town, but it earns its keep on an island day in two clear ways. First, the guided Princes' Islands tour included on the pass bundles the round-trip ferry with a walk through Büyükada's history the mansions, the old quarter, and the climb toward the monastery led by someone who can tell you whose house was whose. Booking it the night before through the app means you skip the ticket window entirely and board with a tap.
Second, the pass is what makes the islands a sensible add-on rather than a separate expense. With your big-ticket museums and the Bosphorus cruise already covered on your city days, spending one day out here costs you almost nothing beyond lunch and a bike. If you'd rather go fully independent, you can the ferry is cheap and the island is walkable but the guided crossing removes the two things first-timers fumble: which terminal, and which boat. Our Bosphorus cruise pass benefits guide explains how the boat inclusions work across the board.
Booking the island walk works the same way as every other tour benefit: open the app, pick a date and a departure, and reserve a spot. First time using it? Our how to activate your pass walkthrough takes about two minutes, and if you want to understand the on-foot tours in general, the free walking tours included with your pass guide covers the city routes too.
Hour-by-hour on Büyükada
Here's a comfortable shape for the day once you step off the ferry at the Büyükada pier. Times are loose on purpose the island rewards dawdling.
11:00 Arrive and orient. The clock tower and the row of cafés by the pier are the island's front room. Grab a çay (chai, tea) and get your bearings before the day heats up.
11:30 Rent a bicycle. Shops cluster just behind the square. Expect 150–300 TL for a half-day hire (May 2026); pick a bike with working brakes for the hill and check the saddle height before you ride off.
12:00 Ride the perimeter loop. A gentle coastal road circles the island in roughly an hour of easy pedalling, past swimming coves and the grand seafront mansions of the old summer set.
13:00 Fish lunch by the water. Pull up at one of the harbour-front balık (bah-LUHK, fish) restaurants for grilled sea bass and a salad (see costs below).
14:30 Climb toward Aya Yorgi. Walk or push your bike up the pine-covered hill toward the Greek Orthodox monastery of St. George (Aya Yorgi); the final stretch is steep and best on foot.
16:00 Coffee and the view. The hilltop terrace looks out over the Sea of Marmara earn it, then sit with a coffee before the descent.
17:30 Drop the bike, catch the ferry. Return your bicycle, buy a simit (see-MEET, sesame bread ring) for the deck, and ride home as the light goes gold.
The monastery climb is the one genuinely demanding part of the day. The path is unpaved and rises sharply through the woods, so it's not ideal in the midday heat or for anyone with mobility limits there's no shame in stopping at the lower café terraces, which share much of the same view. Bring water; the higher you go, the more it costs.
Büyükada day budget (per person) Covered by your pass: round-trip ferry + guided island walk. Out of pocket: bike hire ~150–300 TL · fish lunch ~400–700 TL · tea, coffee, water ~150–250 TL (May 2026). Without the pass, add: ~80–140 TL for the return ferry fare on an Istanbulkart (May 2026). |
An optional second stop: Heybeliada
If you started early and have energy left, break the homeward journey at Heybeliada, one stop closer to the city. It's quieter and more wooded than Büyükada, with a pretty waterfront and the hilltop former Halki seminary looking down over the pines. A short walk or a fayton-style electric cart loop is enough to see the best of it before the next ferry.
This works best as a 60–90 minute stretch rather than a full second island day check the onward times the moment you land at the Heybeliada pier so you're not stranded. If the day already feels full, skip it without regret and ride straight back; Büyükada alone is a satisfying day out.
Many island ferries route through Kadıköy on the Asian side, which makes a tempting end to the day if your boat stops there. Step off, walk the market for an early dinner, and finish on the mainland rather than fighting the crowd back to Kabataş. We map that district in full in our guide to Kadıköy and the Asian side it pairs naturally with an island day.
What to look for as you ride
Büyükada is essentially an open-air museum of late-Ottoman summer architecture, and the joy of the bike loop is reading the houses as you pass. Look for the tall timber mansions with deep verandas and fish-scale shingles, many built for the islands' Greek and Levantine families in the late 1800s. Some are restored to a postcard finish; others sag gently behind overgrown gardens, which is part of their charm.
Beyond the mansions, keep an eye out for the old island churches and the small, shaded swimming coves on the seaward side locals slip in for a dip between errands. The horse-drawn carriages that once defined the island have been phased out in favour of electric carts on welfare grounds, so the lanes are quieter and cleaner than they were a few years ago. Pause where the road opens to the sea: the view back toward the city skyline, hazy across the water, is the photo most people forget to take until the ferry home.
What the pass covers vs. doing it yourself
Here's the honest math for the parts of this day trip you'd otherwise buy piecemeal, using individual prices for May 2026. The islands are deliberately a low-cost day, so the pass's value here is convenience and the bundled guide as much as raw savings.
| Item on this day trip | If you pay separately (May 2026) |
|---|---|
| Round-trip public ferry (Istanbulkart) | ~80–140 TL |
| Guided Büyükada walking tour (booked privately) | ~600–1,200 TL |
| Bicycle hire (half day) | ~150–300 TL |
| Fish lunch with drink | ~400–700 TL |
| Coffee, tea, water through the day | ~150–250 TL |
| Typical day if booked piece by piece | ~1,380–2,590 TL (≈ $43–81 USD) |
Prices are estimates for May 2026 and vary by operator and restaurant. The ferry and guided walk are the items your pass covers; confirm current pass inclusions and pricing on the Plan & Save page before you publish.
On its own, the island day is cheap that's the point. Where the pass pays off is the wider trip: the same card already covered your palaces, the Bosphorus boat, and a transfer, so the marginal cost of adding this day is close to a lunch and a bike. Compare tiers and pencil in your days using our 5-day pass usage guide.
Practical tips for a smooth island day
Go on a weekday if you can. Summer weekends bring big domestic crowds and long ferry queues; a Tuesday or Wednesday in May is far calmer.
Top up your Istanbulkart before you leave the mainland. Top-up machines on the islands can have queues, and the same card works on the ferry, tram, and funicular.
Wear shoes you can climb in. The Aya Yorgi path is loose gravel and steep; sandals will fight you.
Carry cash for bikes and small cafés. Card machines exist but aren't universal on the back lanes.
Mind the last ferry. Evening sailings are sparser than daytime ones confirm your return time when you arrive, not when you're tired at 7 PM.
Plan your island day Slot the islands into a day when your city sightseeing is done, activate the guided ferry tour the night before in the app, and travel light: water, sunscreen, and shoes for the hill. The crossing and the walk are handled, so you arrive ready to pedal. Get your pass and start planning. |
Frequently asked questions
How do I get to the Princes' Islands from Istanbul?
Take a public ferry from Kabataş (European side) or Bostancı (Asian side); some sailings also run from Eminönü and Kadıköy. The crossing to Büyükada takes about 80–90 minutes on a Şehir Hatları ferry and a bit less on the faster enclosed boats. Fares are roughly 40–70 TL each way on an Istanbulkart (May 2026).
Is the ferry to the islands included with the city pass?
Yes the guided Princes' Islands tour on the pass bundles the round-trip ferry with a walk through Büyükada, so you board with a tap instead of buying a ticket. If you go fully independent, the standard public ferry is inexpensive and uses the same Istanbulkart as the trams.
Can you rent bicycles on Büyükada, and how much do they cost?
Yes. Bike-hire shops cluster behind the main square near the pier, and a half-day rental runs about 150–300 TL (May 2026). Cars are banned on the island, so cycling and walking are the main ways to get around, alongside short electric-shuttle hops.
How long should I spend on the Princes' Islands?
A full day is ideal: about five to six hours on Büyükada covers the coastal bike loop, a fish lunch, and the climb toward the Aya Yorgi monastery. If you start early, you can break the return at quieter Heybeliada for an hour without missing the last ferry.
Are the islands accessible without cycling or climbing?
Largely, yes. The flat coastal road and the cafés near the pier are easy to reach on foot or by electric shuttle, and you can enjoy the sea views without the steep monastery path. The hilltop climb is the only strenuous part and is genuinely steep on loose gravel.
What's the best time of year to visit the Princes' Islands?
Late spring and early autumn are the most comfortable. May brings mild days, green hills, and lighter crowds than the July and August peak, when domestic day-trippers fill the ferries and the island lanes get busy.
Useful Turkish for your island day
Adalar (ah-dah-LAR) "the islands" the local name for the Princes' Islands
vapur (vah-POOR) the public passenger ferry
balık (bah-LUHK) fish what to order at the harbour restaurants
bisiklet (bee-seek-LET) bicycle the main way to get around the islands
son vapur ne zaman? (sohn vah-POOR neh zah-MAHN) when is the last ferry? worth asking on arrival
