When Istanbul's noise gets loud enough, locals have a pressure valve: the Princes' Islands (Adalar), a small car-free archipelago in the Sea of Marmara, under an hour and a half from the city by ferry. Pine forests, faded Ottoman-era mansions, swimming spots and not a single traffic light. Here's how to do a perfect island day in 2026.
Which island to pick
Büyükada
The biggest island and the one every first visit should start with. The centre is a grid of nineteenth-century wooden mansions built as summer houses for Istanbul's Greek, Armenian and Jewish families, most of them still lived in and several of them visibly falling down, which is a large part of the atmosphere. The walk everyone does is up to the Aya Yorgi church on the southern hill: a steep cobbled path from Luna Park, twenty to thirty minutes on foot, with ribbons and threads tied along the railings by people making wishes on the way up. The terrace at the top looks back over the whole archipelago and the Marmara. The horse carriages that used to run the loop were retired in 2020 and replaced with electric shuttles, so the options now are walking, a rented bike or the shuttle. Busiest island by far on a summer weekend, and still the right first choice.
Heybeliada
The second-largest, and the one Istanbullus pick when they have already done Büyükada. It is greener and steeper, the pine forest comes down almost to the water on the far side, and the coves there are better for swimming than anything on the bigger island. Two institutions sit on its hills: the Turkish naval academy near the harbour, and the Halki seminary on the Hill of Hope, the Greek Orthodox theological school closed by law in 1971 and the subject of a diplomatic argument that has run ever since. You can walk the ring road in about two hours at a slow pace, which is the best way to see the whole island in a single afternoon. Pick this one if crowds are the thing you came to escape.
Burgazada
Small enough to walk end to end in an afternoon, and quiet enough that the ferry arriving is the loudest thing that happens. The waterfront by the pier is a short row of fish restaurants where the meze trolley is the menu, and prices sit below the Büyükada equivalents for the same catch. The one thing worth going inside for is the house of Sait Faik Abasıyanık, the short-story writer who spent his summers here and whose home is now a small museum kept as he left it, which explains why the island turns up so often in Turkish literature. Best used as the second stop on an island-hopping day rather than the whole trip.
Kınalıada
The closest island to the city, which cuts a meaningful chunk off the ferry time and makes it the realistic option if you leave late. The name comes from the reddish, iron-rich soil, and the island is the barest of the four: far fewer pines than its neighbours, so the walking is coastal rather than forested. It has long been the island with the largest Armenian community, and the church and community buildings near the shore are the reason the summer population multiplies. There is a beach club scene but a modest one, so the afternoon here is swimming, a long lunch and the ferry back rather than a programme.
How to get to the Princes' Islands
Public ferries run from Eminönü and Kabataş on the European side and Kadıköy and Bostancı on the Asian side, all on your Istanbulkart, no advance booking needed. The trip to Büyükada takes roughly 90 minutes from Eminönü and less from the Asian side. Faster private sea buses (deniz otobüsü) cut the time but cost more. Go early on summer weekends, morning ferries fill up fast, and check the last return sailing before you settle into dinner.
What to do once you're there
The islands are car-free, so it's walking, cycling or electric shuttle. Renting a bike is the classic move: a loop of Büyükada takes a couple of hours with swim stops. Hike or ride up to Aya Yorgi for the view, swim at one of the beach clubs or free rocky coves, and end with a long fish lunch by the water, calamari, mezes and cold drinks are the standard order.
Budget-wise, the ferry is nearly free with an Istanbulkart, bikes rent cheaply by the hour, and the main costs are lunch and a beach club sunbed if you want one. A full island day runs cheaper than a night out.
Skip Sunday if you can. Saturdays are busy but manageable; Sundays in July and August are a crush from the ferry queue onwards. A weekday island trip, if your schedule allows it, feels like having the whole archipelago to yourself.
Frequently asked questions
How do I get to the Princes' Islands from Istanbul?
Public ferries run from Eminönü, Kabataş, Kadıköy and Bostancı, all paid with an Istanbulkart. Büyükada takes about 90 minutes from the European side, less from the Asian side.
Which Princes' Island is the best?
Büyükada for the classic experience and the Aya Yorgi viewpoint; Heybeliada for fewer crowds, pine forests and better swimming. The smaller islands suit a quieter, slower day.
Are there cars on the Princes' Islands?
No, the islands are car-free. You get around on foot, by rental bike or by small electric shuttle vehicles, which is a large part of the charm.
Can you swim at the Princes' Islands?
Yes, at paid beach clubs with sunbeds and facilities, or free at rocky coves around the islands. Water quality is best on the islands' outer, sea-facing sides.