Yes! You'll find that most hotel reservations are fully refundable as long as you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of your arrival date. If your reservation is non-refundable, you may still be able to cancel and get a refund within a 24-hour period of booking. Enter your dates, click on "Search", then use the filter option "fully refundable" to get top deals close to Serra da Capivara National Park.