Flash Sale, Get Additional 10% Off Riu Hotels In Spain, Morocco, Portugal And Cape Verde. Hurry up, this is a limited offer. Book your hotel between 12/4 and 15/4 and get an additional 10% off on all of our offers and promotions in Cape Verde, Spain, Portugal and Morocco. Enter the promo code SUMMER16 during the booking process for stays between 12/4 and 31/10/16. Terms & Conditions: Offer exclusive to Riu Hotels, only on reservations made between April 12th and 15th, inclusive. Valid for stays between April 12 and October 31, 2016 at Riu Hotels in Spain, Morocco, Portugal and Cape Verde using the SUMMER16 promo code. Receive 10% off, can be combined with any other valid offers. Rates subject to availability. Offer is not valid for German market.