Yes, you'll find most hotel room reservations are fully refundable provided that you cancel prior to the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of your check-in date. If you have a reservation that's non-refundable, it might still be possible to cancel it and be given a refund within 24 hours of your booking. Add your dates and click on "Search", then you can filter by "fully refundable" to get top deals close to Nááts'ihch'oh National Park Reserve.