Bagdat Street is a newly built posh neighborhood of the Kadikoy district of Istanbul. Even though many nouveau riche live in the area, many are old and new upper-middle-class residents of Kadikoy, from the time when the area was a summer residence of Istanbullus back in the 1940s and 1950s. Beaches of Suadiye were very popular, and rich people who used to live in the Taksim area would go there for the summer after an hour-long trip.
Today the street is also known for secular modern Turkish residents as well as Fenerbahçe fans, the biggest football club in Turkey from the same area. The rich kids of the neighborhood are still present, though in less preposterous ways, and midnight street races are much less frequent.
Bagdat Street is an avenue with pedestrian traffic on both sides and extends from Bostancı to Kadiköy, with restaurants, cafes, bars, and expensive shops of global brands.
Although it has no particular tourist attraction, it still attracts travelers who would like to spend a few calm hours strolling the street. The areas around Şaşkınbakkal and Caddebostan are the best, especially the beach strip in Caddebostan, which has a nice seaside park.
You may walk to Bagdat Street from Kadiköy — it starts in Kızıltoprak about 20 minutes' walking distance from Kadiköy and ends in Bostancı an hour of walking later. You can also take a dolmuş, bus, or cab to Suadiye and walk back towards Kadiköy. You can also go to Bostancı from Kabataş (5 minutes from Taksim by funicular) taking the fast ferry, also known as sea bus.
Istanbul Municipality ferry (Şehir Hatları) timetable for classic beautiful Istanbul boats.
Sea buses / Fast ferries for faster boats with no outdoor area.