This route follows the ancient seawall of Constantinople along the Golden Horn. Start at Yenikapı metro station and catch the ferry northeast along the water toward Eminönü terminal. You'll pass the old city walls, several Ottoman mosques, and get amazing views across to Galata Tower.

The water route is completely flat with no traffic, though watch out for fishing lines from locals along the seawall when you dock. Early morning around 6-7am is perfect - you'll see the city waking up and catch the first ferries heading out.

End at Eminönü where you can grab fresh simit and çay from vendors. Total ferry ride is about 15 minutes with minimal crowds.