Hotel Riviera in Rosario. Hotel Riviera, located in the city of Rosario, is one o the most prestigious hotels of the city.Hotel Riviera, the most traditional hotel of Rosario, combines a detail-oriented hotel service with state-of-the-art technology. Located in the most quiet and safe part of the commercial and financial area of downtown in Rosario, it features 115 rooms equipped with work space, Internet; gourmet restaurant; catering service for events; 5 venues for conferences with a seating capacity that ranges from 6 to 130 people. Business Center, Parking. Hotel Riviera is perfectly located at financial center of Rosario. Its pleasant atmosphere and comfortable rooms make Hotel Riviera one of the best hotels in the city of Rosario.