Location the 19th century ottoman palace turned hotel is located in istanbuls besiktas neighborhood on the waters edge close to beyazit tower suleymaniye mosque and istanbul university grand bazaar and spice bazaar are nearby hotel features four seasons hotel istanbul at the bosphorus offers a variety of recreational amenities including a health club an indoor pool a spa tub a steam room and a sauna the full service onsite spa at this 5 star property offers 10 treatment rooms