Explore both sides of Istanbul on this full-day city tour. Visit the ornate Dolmabahce Palace on a 1.5-hour guided tour and then hop aboard a 2.5-hour Bosphorus River cruise. Watch the beautiful city skyline pass by and head to the old Ottoman Palace of Kucuksu on the Asian side. Take a cable car ride and a bus tour of the old city to end the comprehensive tour of Istanbul.