Early Booking Offer - Save up to 22% Off Sirenis Hotels Mexico. Book your stay at Grand Sirenis Riviera Maya Hotel & Spa Mexico and save up to 22% An ideal place to enjoy a holiday as a couple or as a family. Terms & Conditions: Special offer valid until 30 April 2016. Stay period is from 1 September 2016 to 31 October 2016. Room Type: Junior Suite. Book Now.