Yes, you'll find most room reservations are fully refundable as long as you cancel prior to the hotel's cancellation deadline, which often is within 24-48 hours of your check-in date. If your reservation is non-refundable, you might be able to still cancel and get a refund within a 24-hour period of booking. Add your dates and click on "Search", then you can use the "fully refundable" filter to get the best deals near Katmai National Park.