OopsnewsHotels - Grosvenor House Dubai. This modern 5-star hotel is located in Dubai Marina and features a welcome drink. Featuring views of Dubai Marina, it also provides a multitude of facilities, such as a sauna, an outdoor pool and outdoor tennis courts. Guests can enjoy a range of massage treatments and beauty therapy at the in-house spa and wellness centre, The Retreat Health & Spa. Relaxation facilities include a Turkish steam bath and a beauty centre.