The St. Regis Istanbul is a luxurious adult-only hotel located in the upscale Nişantaşı neighborhood of Istanbul. The hotel offers elegantly designed rooms and suites, a rooftop terrace with panoramic views of the city, and a spa. Guests can enjoy a range of amenities, including a fitness center, an indoor pool, and a variety of dining options. The hotel's central location allows easy access to high-end shopping districts, trendy restaurants, and cultural attractions. The Istanbul Modern Art Museum and the Dolmabahce Palace are just a short distance away from the hotel.