Explore Istanbul by land and sea on this tour. Hop onto a cruise boat and admire the views of Rumeli Fortress and Yildiz Palace from a boat in the middle of the Bosphorus Strait. Back on land, visit Eyup Sultan Tomb, the cast-iron Church of St Stephen of the Bulgars, and the Byzantine city walls. Ride a cable car up Pierre Loti Hill and snap pictures of the view over the city.