What are nice day trips from Istanbul?
Short answer
İznik, Şile, Kapaklı and Armutlu are some potential day trips within 100 km of Istanbul. Bilecik and Kütahya are within 200 km of Istanbul by train. We list 14 places below, including 8 coastal towns (Karamürsel district and Gemlik), 3 ancient sites (Orhangazi) and 2 old-world towns (Mudanya district). More below.
Within 100 km 12 places
By train, within 200 km 2 places
Places with a railway station within a 10-minute drive. Each one links to public-transport directions from Istanbul, so you can check the route and journey time.