Ellison Air will accept a Visa, Master Card or Discover credit card number to confirm your booking. If you need to cancel and fail to do so 48 hours prior to departure, there will be a 50% cancellation fee. There is no cancellation fee if cancellation is due to weather or other acts of nature. Ellison Air reserves the right to make changes and alterations to any tour as may be necessary for safety. If Ellison Air has contracted another guide service or air taxi on your behalf, we will honor their cancellation policy as well.