Those who are staying for a little longer in İstanbul, should really set aside a day to visit these charming islands in the sea of Marmara, just off the coast of İstanbul. The picturesque scenery of wooded hills, charming beaches and authentic Ottoman mansions, combined with the tranquil atmosphere, make for a pleasant contrast to the city itself. Easily reached by ferry or hydrofoil, the ambience of the islands seems worlds away. Büyük Ada, or "Big Island" is the most popular with visitors. No cars are allowed but you can take a trip in a horse and carriage to visit the Monastery of St. George.