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, you might be able to cancel it and be given a refund within 24 hours of booking. Add your dates and click on "Search", then use the "fully refundable" filter to view top deals close to Gatún Dam.