Yes, you'll find most hotel bookings are fully refundable provided that you cancel before the accommodation's cancellation deadline, which is often 24 or 48 hours before your check-in date. If your reservation is 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 review the best deals near Clam Gulch State Recreation Site.