Day trip from Istanbul to Princes Islands: how to get there and what to do

The islands sit in the Sea of Marmara, southeast of the city, and the only practical way over is by ferry. City lines run from the European side (Kabataş, Eminönü, Karaköy) and from Kadıköy and Bostancı on the Asian side. Kabataş and Eminönü are the easiest for most visitors staying in Sultanahmet, Beyoğlu or along the tram line.

Crossings take about an hour to Heybeliada and 1–1.5 hours to Büyükada, depending on the pier and how many islands the boat calls at. Boats run through the day but thin out in the evening, so check the last return before you go. Pay with an Istanbulkart; a single ride costs a few lira, and the 2026 tariff should be confirmed at the pier or on the operator's site.

A private tour or a hotel-arranged boat costs far more and buys little on this route, because the public ferry is frequent and comfortable. The one case for a tour is a fixed schedule with a guide, useful if you do not want to plan the return.

Take an early ferry, ideally the first or second departure of the morning, so you land before the crowds. On Büyükada, walk or cycle the loop past the old wooden houses, then climb or take the electric shuttle to the hill above the island for the view back towards Istanbul. Lunch is the main event for many visitors: fish and meze near the ferry landing, or a picnic from a bakery if you prefer.

On Heybeliada the scale is smaller: a shorter waterfront, a naval school on the hill, and pine paths that stay quiet even in summer. If you want a beach, the islands are not the best choice; the water is clean enough but the beaches are small and often paid.

Aim to be back at the pier by late afternoon. The evening ferries fill up on summer weekends, and the ride home is the part people underestimate.

The day is cheap by Istanbul standards. The ferry is the main transport cost and is paid with an Istanbulkart; budget a small amount each way, with the 2026 figure to be confirmed. Food on the islands costs more than in the city because everything is brought over, so a waterfront fish lunch can run several times a simple city meal.

Bicycles rent by the hour, and the electric shuttle up the hill charges a small fee. Add water, snacks and a coffee and the day stays modest. A tour or private boat changes the maths entirely.

For most visitors, no. The islands work as a day trip because the ferries are frequent and the crossing is short enough to do twice in a day. Staying overnight makes sense if you want the island after the last boat leaves, when the waterfront empties, or if you plan an early start for cycling or walking.

If you do stay, book ahead in summer; the small hotels fill quickly on weekends. Otherwise, keep your Istanbul base and treat the islands as a slow day out from the city.

The islands lie southeast of Istanbul in the Sea of Marmara. Ferries leave from Kabataş and Eminönü on the European side and from Kadıköy and Bostancı on the Asian side, landing at Heybeliada and Büyükada among others. Coordinates below are approximate for the main island.