Escape from the busy streets of Istanbul for a full-day excursion to the Princes Islands. Cruise past Topkapi Palace, Leanders Tower and Uskudar, then glide across the Marmara Sea to reach the islands of Heybeliada and Buyukada. Learn about the princes of the Byzantine Empire who once relaxed on these islands as you take a horse-drawn carriage tour. Have lunch at a fish restaurant and enjoy free time to explore on your own, taking in the beaches and historic sites at your leisure before returning to Istanbul.