Yes, you'll find most hotel bookings are fully refundable if cancelled before the hotel's cancellation deadline, which often is within 24-48 hours of your scheduled arrival. If you booked a non-refundable reservation, you may still be able to cancel and get a refund within 24 hours of your booking. Add your dates and click on "Search", then you can filter by "fully refundable" to get the top deals on offer near Centennial Park.