Yes, the majority of room reservations are fully refundable provided that you cancel before the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of your scheduled arrival. If your reservation is non-refundable, it may still be possible to cancel it and be given a refund within 24 hours of your booking. Enter dates in and click on "Search", then you can filter by "fully refundable" to review the best options available near Plaza de Armas.