Maps and GPS directions to Mercure Okinawa Naha and other Accor Hotels in Japan. Find your nearest Accor Hotels. Accor is the world's largest hotel and tourism group with more than 3500 hotels and resorts in 90 countries, with the most comprehensive choice of hotel styles and locations. Accor hotels are ideally located in city centre's & near airports with hotels across Europe. Ibis becomes the keystone of the Group's economy brands (All Seasons becomes Ibis Styles, and Formule 1 and Etap brands become Ibis Budget).