Yes! The majority of hotel room reservations are refundable provided that you cancel before the hotel's cancellation deadline, which often is within 24-48 hours of your arrival date. If you have a non-refundable reservation, it may still be possible to cancel it and be given a refund within a 24-hour period of booking. Put your dates in and click on "Search", then use the "fully refundable" filter to get top deals close to Canal Cristina.