Early Booking Deal: Book Your Holiday In Ibiza Now And Get Discount Up To 20% Off Palladium Hotels, Ibiza, Spain. Make sure to book your summer holidays at Palladium Hotels in Ibiza before January 31st and get the best prices up to 20% off. T&C: Book before 31st January 2016 for holidays in 2016. Period of stay and conditions may vary according to the hotel. Subject to availability and change without prior notice.